Keith Andes
Birdman (voice) (61 eps)
Don Messick
Falcon 7 / Vapor Man (voice) (60 eps)
Virginia Eiler
Gravity Girl (voice) (60 eps)
Ted Cassidy
Meteor Man (voice) (60 eps)
John Stephenson
Number One (voice) (60 eps)
June Foray
Medusa (voice) (1 eps)