The letter is signed by 217 people comprising a who's who of the animation industry, among them prominent show creators Rebecca Sugar ( Steven Universe ), Lauren Faust ( My Little Pony: Friendship Is Magic ), Shadi Petosky (co-creator, Danger & Eggs ), Rikke Asbjoern (co-creator, Pinky Malinky ), and Julia Pott ( Summer Camp Island ); industry execs Audrey Diehl (vp of series, Warner Bros. Animation), Jenna Boyd (director, kids & family creative, Netflix), and Jill Sanford (kids and family creative development, Netflix); and numerous other high-profile creative talents including Adventure Time director Elizabeth Ito, Pearl production designer Tuna Bora, Dreamworks TV Animation supervising producer Aliki Theofilopoulos, Bob's Burgers writer/supervising producer Wendy Molyneux, Frozen and Kung Fu Panda 3 story artist Clio Chiang, and Wreck-It Ralph 2 assistant production designer Mingjue Chen.