Our Executives

Leslie Greif

Owner & CEO

One of the most prolific figures in the entertainment industry, Leslie Greif (Founder & CEO of Thinkfactory Media) is a multi-Emmy® and Golden Globe® nominated producer, creator, writer and director. Mr. Greif is well-known for three iconic television classics – as creator of the long-running series Walker Texas Ranger starring Chuck Norris, Gene Simmons Family Jewels, and the award-winning, critically acclaimed mini-series The Hatfields & The McCoys starring Kevin Costner.

Mr. Greif is a versatile talent responsible for hundreds of hours of quality scripted and unscripted entertainment which have aired on nearly every major television network. Thinkfactory Media’s projects have collectively earned 20 Emmy nominations (5 wins), 2 Golden Globe nominations (1 win), 23 Guild nominations (5 wins) and 2 Guinness World Records.

In the scripted realm, Mr. Greif most recently developed and currently executive produces the 1950s period drama Sun Records, spotlighting Elvis Presley, Carl Perkins, Johnny Cash, Jerry Lee Lewis and record company pioneer Sam Phillips in CMT’s first original scripted drama show. Sun Records’ premiere became the most-watched night of CMT originals in the channel’s history.

Mr. Greif is also the writer and executive producer of the upcoming movie thriller The Dating Game Killer for Investigation Discovery as well as Lifetime’s hit Gracie award-winning urban biopic Surviving Compton: Dre, Suge & Michel’le. Mr. Greif won kudos as writer and executive producer of the 10-hour television event Texas Rising for History, the true story behind the fabled Texas Rangers, which rustled up a trio of Emmy nominations and starred Jeffrey Dean Morgan, Bill Paxton, Ray Liotta and Kris Kristofferson.

Mr. Greif’s multi-hyphenate work on other scripted projects includes a slate of independent films: as director and producer of the crime drama Keys to Tulsa, starring Eric Stoltz, James Spader and Cameron Diaz; writer, director and producer of the Chevy Chase comedy Funny Money; producer of the Rodney Dangerfield comedy Meet Wally Sparks; producer of the Alec Baldwin thriller Heaven’s Prisoners; and writer/director of the screwball sex comedy 10 Rules for Sleeping Around.

In the world of unscripted/reality programming, Mr. Greif currently executive produces Mama June: From Not to Hot, which delivered 2.3 million viewers in its premiere, WEtv’s highest debut in the channel’s history. Mr. Greif has several other enduring series including Marriage Boot Camp (in its 10th season on WEtv), R&B Divas (TV One), Married by Mom and Dad (TLC), Hollywood Divas (TV One), Preachers’ Daughters (Lifetime), Chasing Mummies (History), Sinbad: It’s Just Family (WEtv), Eddie Griffin: Going for Broke (VH1), and Battleground Earth starring Ludacris and Tommy Lee (Planet Green/Discovery).

In the documentary arena, Thinkfactory Media is currently producing an independent feature on the 60th anniversary of the Rat Pack. Mr. Greif produced and directed Brando for TCM, which earned an Emmy nomination and starred Al Pacino, Robert Duvall, Sean Penn, Johnny Depp and Martin Scorsese. Mr. Greif’s other docu-projects include Steve McQueen: The Essence of Cool (TCM), multiple episodes of the A&E series Biography, NBC’s Headliners & Legends, nearly 50 episodes of the Lifetime bio-doc series Intimate Portrait, Opening the Tombs of the Golden Mummies: Live! which aired on Fox TV from deep in the Sahara Desert, and ABC’s first live fan sports awards show The All-Star Pro Sports Awards, featuring winning athletes Michael Jordan, Joe Montana, Muhammad Ali and Mike Tyson.

Adam Reed


Adam Reed is responsible for overseeing all aspects of Thinkfactory Media’s overall business including creative, development, production, and day-to-day operations of the company.  Reed has been instrumental in transitioning the company into a thriving mainstay network supplier and is an integral part of every production the company produces.

Reed’s programming is consistently breaking records and changing the face of television. The premiere of the unscripted series Mama June: From Not to Hot delivered 2.3 million viewers making it the highest series premiere ever for WE tv. Simultaneously, the debut of scripted series, Sun Records (CMT) attracted nearly 3 million fans, making the network the most watched night of CMT originals in the channel’s history.

Upon starting out in the business, Reed rapidly gained a reputation for bringing a unique perspective to every genre of reality television, and in 2011 he became the youngest producer ever to be included in The Hollywood Reporter’s “Reality Power List.” He started Thinkfactory’s rapid growth by co-creating Gene Simmons Family Jewels, and his ambition and drive was instrumental in developing the large unscripted slate that the company has today. He executive produced over eight seasons of the hit franchise Marriage Boot Camp: Reality Stars, which has resulted in various spinoff series including, the above mentioned Mama June: From Hot to Not and Family Boot Camp. He additionally executive produced and franchised TV One’s highest rated series in the history of the network, R&B Divas, with the spinoff R&B Divas: Los Angeles.

Additional scripted and unscripted credits include: #Preached (go90), Surviving Compton: Dre, Suge & Michel’le (Lifetime), Million Dollar Matchmaker (WE tv), Married by Mom & Dad (TLC), Preachers’ Daughters (Lifetime), The Donner Party (The Weather Channel), 4th and Loud (AMC), Big Giant Swords (Discovery), and Teach: Tony Danza (A&E).

Prior to joining Thinkfactory, Adam made his mark in the commercial industry by creating and directing the largest campaign in the history of the Partnership for a Drug-Free America.  Reed garnered national and international acclaim as it became one of the most successful commercial campaigns ever created.  In addition, he was shortlisted at the Cannes International Advertising Festival for a spot he directed for the Philadelphia Phillies, and continues to work with some of the largest advertising agencies in the world to direct and produce various commercial spots and branded entertainment campaigns. He also recently authored his first children’s book, Bee in the Sea, which has already received national attention, awarded three first-place Royal Dragonfly Awards, including Best New Author, and named the 2016 Finalist in Next Gen’s Indie Book Awards.

Joanne Rubino

President of Production

An Emmy® nominated producer with over 28 years of experience, Joanne Rubino is a veteran of the entertainment industry. As president of production, she oversees all aspects of production for Thinkfactory Media’s vast slate of projects and has played an integral role in the growth of the company over the past 16 years.

In addition to her production work, Rubino has produced such Thinkfactory Media successes including Sun Records (CMT) which attracted nearly 3 million fans, making the network the most watched night of CMT originals in the channel’s history, and Surviving Compton: Dre, Suge & Michel’le (Lifetime), She was also the only female producer on the ten-hour television event Texas Rising (History), and was the executive producer on its promotional documentary, Avenging The Alamo: The Road to Texas Rising. Additionally, she was a producer on the ratings juggernaut, Hatfields & McCoys (History), and also spearheaded the behind-the-scenes companion documentary, America’s Feud: Hatfields & McCoys. Joanne is well-known in the industry for producing quality documentaries and earned an Emmy® nomination for her work on Brando (Turner Classic Movies) in 2007.

Other credits include: the highly successful Mama June: From Hot to Not (WE tv), Million Dollar Matchmaker (WE tv), Married by Mom & Dad (TLC), Marriage Boot Camp: Reality Stars (WE tv), TV One’s highest rated franchise R&B Divas, and worked on nearly seven seasons of Gene Simmons Family Jewels (A&E) starring KISS front man Gene Simmons.

Throughout her years of working up the business production side of the industry, Joanne was able to maintain a hand in creative, being a fixture both behind and in front of the camera and having had guest stints on various series such as NYPD Blue, 7th Heaven, Passions, ER, Six Feet Under, The Unit, Freddie, The District, Punk’d, Prank My Mom, Vice Academy and more.

Adam Freeman

EVP of Creative Affairs

As Thinkfactory Media’s executive vice president of creative affairs, Adam Freeman is integral in shaping the creative direction and development of all of the company’s projects.

Freeman has been an essential part of the company and has been in the driver’s seat executive producing some of the company’s biggest hits, including the unscripted series Mama June: From Not to Hot, which delivered 2.3 million viewers on premiere night, making it the highest series premiere ever for WE tv. He additionally executive produced over eight seasons of WE tv’s wildly successful, Marriage Boot Camp: Reality Stars, which has resulted in various spinoff series including, the above mentioned Mama June: From Hot to Not and Family Boot Camp. Furthermore, he executive produced and directed over 150 episodes of Gene Simmons Family Jewels starring KISS front man, Gene Simmons, and has continued to develop and produce various projects with him such as 4th and Loud (AMC).

Other credits include: #Preached (go90), Surviving Compton: Dre, Suge & Michel’le (Lifetime), Million Dollar Matchmaker (WE tv), Married by Mom & Dad (TLC), Preachers’ Daughters (Lifetime), The Donner Party (The Weather Channel), Big Giant Swords (Discovery), and Teach: Tony Danza (A&E).

Prior to joining Thinkfactory Media, Freeman began his career with an eleven-year stint at MTV, where his most notable credits include over 800 episodes of the iconic Total Request Live and three years of the star-studded MTV New Year’s Eve Live.  In 2003, Adam became the youngest show runner in syndication, producing FOX’s live hybrid talk/entertainment news show On Air with Ryan Seacrest. He later went on to run a string of successful shows including The Chelsea Handler ShowNick Cannon Presents Wild n’ Out and the live finale of R U The Girl amongst others before creating shows for multiple networks.

In addition to his successes in television, Freeman is also an acclaimed comic book writer whose previous work includes:  Genius, the winner of Top Cow’s Pilot Season, and is now an ongoing series, The Highwaymen, Monster Attack NetworkThe Authority, Hero Complex and The Nightwatchman.

Herb Nanas


With over 45 years as a talent agent, personal manager and producer in Hollywood, Nanas brings a tremendous amount of entertainment industry experience to Thinkfactory Media.

Nanas is currently working closely with CEO & Founder, Leslie Greif to produce a slate of high quality scripted projects for Thinkfactory Media, including the highly-anticipated eight-hour television event, Texas Rising (History).
Nanas is known for giving up a promising career as an agent at William Morris to personally manage Sylvester Stallone’s career, helping take him from a struggling actor to one of the world’s biggest stars. Nanas has personally represented some of the biggest stars in Hollywood including comedian Albert Brooks, Roseanne Barr, Gary Busey, Michael Chiklis, Ray Sharkey and Lorenzo Lamas, amongst others.

In addition to his achievements in the personal management arena, Nanas has made his mark in the industry as a feature film producer. Some of his most notable work includes Rocky IIRocky IIIParadise AlleyNight HawksEye of the TigerLost in AmericaDefending Your LifeThe Scout2 Days in the Valley,MotherThe MuseNo Good DeedLooking for Comedy in the Muslim World and Funny Money.

Nanas has also executive produced three comedy specials for HBO, these include On Location: the Roseanne Barr SpecialJust Words, starring Larry Miler, and Revelations, starring the late Bill Hicks. Nanas also produced Proudheart, which was nominated for an Emmy and was the first ever made-for-television film for The Nashville Network, starring budding country star Lori Morgan.

Alex Kerr

Head of Scripted Programming

Alex Kerr brings over 15 years of experience as studio executive, literary agent and production executive as Thinkfactory Media’s Head of Scripted Programming. He oversees all aspects of  scripted development for broadcast, cable and digital networks.

Prior to joining Thinkfactory in 2014, Alex was Vice President of Development and Current Programming at Universal Cable Productions, where he worked closely with content creators including Gale Anne Hurd and Doug Liman.  At UCP, he focused on cable dramas, including Bravo Network’s first scripted success Girlfriends’ Guide to Divorce.

Alex also ran the scripted division of  Tom Shadyac’s Shady Acres (8 Simple Rules) under a deal at ABC Studios.  He also ran Benderspink’s (Kyle XY) television department, overseeing development deals with Fox 21 and CBS Television Studios .

He began his career at United Talent Agency, where he was an agent for five years, representing writers, producers and directors for television.

Mayen Ma

Mayen Ma

VP of Current Unscripted

As Thinkfactory Media’s VP of Current, Unscripted, Mayen Ma oversees all aspects of current series production for Thinkfactory Media’s slate of unscripted projects and has played an essential part in the growth of that business over the past nine years.

Since joining Thinkfactory media, Ma has helped produce some of the company’s biggest hits, including the unscripted series Mama June: From Not to Hot, which was highest series premiere ever for the network with 2.3 million viewers on premiere night.  She also had a hand in producing WE tv’s hugely successful Marriage Boot Camp: Reality Stars, which has resulted in various spinoff series such as Family Boot Camp.  Additional Thinkfactory Media credits include: Million Dollar Matchmaker (WE tv) and The Donner Party (The Weather Channel), 4th and Loud (AMC), which was Ma’s original idea, and Gene Simmons Family Jewels (A&E).

Ma began her career in satellite news working for clients that included MSNBC, CNBC, Al Jazeera, ESPN and PBS. Following her stint in news, she joined the development team at Fuse TV where she helped to create shows such as The Whitest Kids You Know, Pants Off/Dance Off, and Rad Girls.   Other credits include: Celebrity Apprentice and Giuliana and Bill.

Brian Dale

VP, Unscripted Development

As Vice President of Unscripted Development, Brian Dale oversees all of Thinkfactory Media’s unscripted development for broadcast and cable networks, digital and OTT platforms.

Since joining the company in 2011, Dale has developed multiple unscripted TV projects, beginning with Lifetime’s Preachers’ Daughters. His experienced knowledge in both production and post-production has been a crucial contributing factor to the growth of Thinkfactory’s unscripted development department, with shows such as #PreachedBig Giant Swords, Vet School and Strange Love.

Prior to joining ThinkFactory Media, Brian worked in commercial production and viral video advertising as a writer, producer and director.

Nicholas Williamson

Nicholas Williamson

Business Affairs & Legal

Nicholas Williamson handles business and legal affairs for Thinkfactory Media.

He has practiced entertainment law in Los Angeles since 2003, and has been involved in all aspects of litigating high stakes entertainment and copyright cases in both federal and state courts, including the Ninth Circuit. His efforts have been recognized for excellence by such publications as The Hollywood Reporter, Variety and Forbes.

Representative decisions include:

  • Siegel v. Warner Bros. Ent. Inc., 542 F. Supp. 2d 1098 (C.D. Cal. 2008); Siegel, 658 F. Supp. 2d 1036 (C.D. Cal. 2009); Siegel, 690 F. Supp. 2d 1048 (C.D. Cal. 2009).
  • Classic Media, Inc. v. Mewborn, 532 F.3d 978 (9th Circuit 2008)
  • Clonus Assocs. v. Dreamworks, LLC, 457 F. Supp. 2d 432 (S.D.N.Y. 2006):
  • Moonrunners Limited Partnership v. Time Warner Inc., et al., Case No. 05-1361 GAF (VBKx), 2005 U.S. Dist. LEXIS 41244 (C.D. Cal. June 17, 2005)

When not at work, Nicholas can be found at the beach with his three kids and his lovely wife, Kirby.

Fern Champion

Co-Head of Scripted Casting

Fern Champion, CSA, is a renowned Casting Director with many years of experience casting award-winning films and television series, in both comedy and drama.

Fern’s work helped launch the careers of Cameron Diaz, Mickey Rourke, Sharon Stone, Kim Cattrall, Danny Glover and more. Fern was nominated for an Emmy for her work on the extraordinary miniseries Hatfields & McCoys, one of 14 nominations Hatfields garnered.

Past Credits include The MaskPolice Academy franchise; Stephen King’s Pet SemataryThe Naked Gun; Beverly Hills, 90210; Mortal Kombat; and History Channel’s epic miniseries Texas Rising.

Fern teamed up with Sharon Lieblein, and they are currently enjoying the shine of Sun Records, CMT’s breakout hit series. Fern and Sharon’s credits include Surviving Compton (Lifetime); Dating Game Killey (Discovery ID); Beaches (Lifetime); Greenhouse (Netflix); Sigmund & the Sea Monsters (Amazon); and the Untitled Horror Anthology, produced by Cinelou and currently in production.

Sharon Lieblein

Co-Head of Scripted Casting

Sharon Lieblein, CSA, is a partner with Fern Champion at Champion/Lieblein Casting.

Most recent projects; Sun Records (CMT), Surviving Compton (Lifetime), Dating Game Killer (Discovery ID), Beaches (Lifetime), The Greenhouse (Netflix), Sigmund & The Sea Monsters (Amazon) in addition to other various features, TV movies and TV pilots.

Prior to returning to the freelance world, she most recently served as vice president, casting and talent development, for Cartoon Network Studios. Lieblein oversaw live-action talent and casting for the Studio and served as the executive liaison between talent and the different divisions within the studio and network. She was responsible for identifying, casting and managing talent appearing on Cartoon Network Studios scripted and alternative live-action projects. She reported directly to Rob Sorcher, chief content officer for Cartoon Network, based in Burbank, California.

Preceding her stint @The Cartoon Network, Lieblein was on staff for 13 years at Nickelodeon, where she served as vice president of talent & casting. In this capacity, she oversaw all live-action casting for Nickelodeon Networks, including pilots, TV movies, specials and promos. Among her projects were such signature Nickelodeon shows as iCarly, Big Time Rush, Victorious, Zoey 101 and Drake and Josh, and she helped discover such talent as Emma Roberts, Lily Collins, Josh Peck, Miranda Cosgrove, Victoria Justice and Gabriel Iglesias. She also oversaw animation casting at the network for two years.

Earlier in her career before joining Nickelodeon, Lieblein worked as a freelance and in-house casting director on various feature film and television projects including the Witt-Thomas Productions of The John Larroquette Show (NBC) and Pearl (CBS).

Lieblein has been a working member of the Casting Society of America (CSA) since 1995 and an active Television Academy member since 1999, serving as a Casting Director Governor and Chair of the Membership Committee among others. Additional affiliations include serving as vice chair of the Advisory Committee for “Looking Ahead,” a division of the Actors Fund of America, for over 13 years.