This Thumb Double Feature includes exclusive special appearances by The Thumbersons.
Loke Groundrunner / Dad / Jake / 'We've Been Hit' (voice)
Geranium / Old Geranium (voice)
Prissypeo / The Captain / 'Lovely Ship' Steward (voice)
Oobedoob Benubi / Mr. Prickle / Thumbtrooper (voice)
Dentist / Boiler Room Guy #1 / Crunchy / Lieutenant (voice)
Black Helmet Man / The Interviewer / TV Anchor (voice)
Commander Cuticle / Effeminate Thumb / Instructor (voice)
Baldie the Thumb Wrestler / Uncle Soondead / Fighter (voice)
Fighter Pilot #2 / Geranium's Servant (voice)
Hand Duet (voice) (as Ross Schaefer)
Princess Bunhead (voice)
We're Sinking! (voice)
No We Can't Be Sinking (voice)
Baby Buyer / Piano Man (voice)
It's a Big Ship (voice)
Ship Must go on for Miles (voice)
It's a Big Ship!' / Bedwetter / 'I Wet Myself (voice)
What a Lovely Big Ship!' / 'We're Going Down! (voice)
All Aboard Steward / Good Gravy What a Ship! (voice)
Submarine Pilot / Excited One-Eyed Thumb / Lookout #3 (voice)
