Mark joined the William Morris Agency in 1982, to become a television packaging agent specializing in first-run syndication, pay and basic cable television. Mark has packaged such varied television series as: Real World, Project Runway, Hell’s Kitchen, Kitchen Nightmares, Deal or No Deal, Extreme Makeover: Home Edition, Tyler Perry’s House of Payne, Tyler Perry’s Meet the Browns, Big Brother, Fear Factor, People’s Court, The Ricki Lake Show, American Gladiators, Biggest Loser and Buffy the Vampire Slayer.

Until he retired in December 2015 Mark was Co-Head of Television at and a member of the Board of Directors of William Morris Endeavor (WME). Currently he is a corporate Board of Director, producer, consultant and an entrepreneur in the media business. Mark has been a member of the Academy of Television Arts & Sciences for thirty years, a two-term Governor, and spent six years on the Academy of Television Arts & Sciences Executive Committee. In addition, Mark chaired the Blue Ribbon Panel Committee which successfully instituted “at-home” viewing of the Prime Time Emmy Awards and was the Chairman of the ATAS Hall of Fame Committee for four years. Mark was also the first agent appointed to NATPE’s (National Association of Television Programming Executives) Executive Board. Mark is currently on the Board of Governors of Cedars-Sinai Hospital, on the Board of Directors of the Zimmer Children’s Museum, and on the Board of Directors for The National Aids Monument. Mark has been a Guest Lecturer at Harvard Law School.


Grant Mansfield

CEO & Founder

Jonathan Jackson

Chief Operating Officer & Chief Financial Officer

Martha Holmes

Chief Creative Officer, Natural History & Science

Lynn Sinclair

Director of Talent

Karen Plumb

Head of Factual Entertainment

Tom Hugh-Jones

Creative Director, Natural History

Alan Eyres

Head of Plimsoll USA

Marvin Rees

Non-executive Director & Mayor of Bristol

Richard Klein

Head of Documentaries UK & International

Kate Beetham

Executive Producer

Lisa Gilchrist

Head of Drama

Andrea Jackson

Creative Director, Factual Entertainment

Lucy Bilson

Head of Production

Christine Owen

Non Executive Director

Will Brown

Head of Operations & HR

Becky Morrison

Head of Development

Ged Mansfield

Creative Director, Development