Frank Zappa - arranger, composer, director, vocals, producer, Synclavier, guitar
Tommy Mars - keyboards, vocals
David Ocker - Synclavier
Mark Pinske - engineer
Scott Thunes - vocals, bass guitar
Johnny "Guitar" Watson - vocals, cast
Ray White - vocals, cast, guitar
Chuck Wild - piano
Jay Anderson - string bass
Ed Mann - percussion
Chad Wackerman - drums, vocals
Ike Willis - vocals, cast, guitar
Dale Bozzio - vocals, cast
Arthur Barrow - bass guitar
Terry Bozzio - drums, vocals, cast
Napoleon Murphy Brock - vocals, cast
Steve DeFuria - Synclavier
Bob Harris - keyboards, vocals, cast
Steve Vai - guitar
Bob Fletcher - costume design
Ladi Von Jansky - photography, cover photo
Bob Stone - engineer
Cast
Thing-Fish—Ike Willis
Harry—Terry Bozzio
Rhonda—Dale Bozzio
The Evil Prince—Napoleon Murphy Brock
Harry-As-A-Boy—Bob Harris
Brown Moses—Johnny "Guitar" Watson
Owl-Gonkwin-Jane Cowhoon—Ray White