Producer
Conductor
Stage director
Jo Ann, (a trainee children's doctor)
Donny, (her young brother)
Nan, (Their foster mother)
Merlin, (The computer wizard)
Pelegrin, (The space pilot)
Regan, (Their boss)
The presenter
Citizens of Terror Town
Set designer
Chorus master
Choreographer
Lighting designer
Video
Dramaturge
Orchestra