Craig Gerber ("Pixie Hollow Games") developed the movie and serves as co-executive producer and story editor. Jamie Mitchell ("Special Agent Oso") is executive producer and director. John Kavanaugh ("Winnie The Pooh: Springtime with Roo") serves as songwriter/music director and Kevin Kliesch ("Tangled Ever After") is the composer. "Sofia the First: Once Upon A Princess" is a production of Disney Television Animation. 

Source: Disney Junior