as Umberto Ortega
as Gary Hargrave
as Joe Lieber
as Judd Lumpkin
as Supervisor
as Older Felix
as Lab Technician
as Harold Green
as TV Man
as Ben
as TV Reporter
as Balloon Vendor
as Russell
as Jim Fenton
as Louis Owen
as Victor
as Duncan
as Roger
as Darren
as Hank Kringle
as Gil/Manny (voice)
as Sam
as Gil / Manny (voice)
as Milo 55160
as Jay Felger
as Detective Hamish Slorach
as Dr. Seigel
as Gary Redfield
as Snyder
as Barry Berlin (uncredited)
as Duke Peel (voice)
as CC Glendale
as Grandpaw / Manhole Dog (voice)
as Billy the Club Manager
as Dr. Julius Booker
as Dr. Gavin Brookes
as Marty Stephens
as Frank Kanaskie
as Professor Pamplemoose (voice)
as Byron Kane
as Roy (voice)
as Robear (voice)
as Two Legs Joe (voice)
as Nestor (voice)
as Buddy (voice)
as Mr. Kerdle (voice)
as Rod Stool
as Additional Voices (voice)
as Robert (voice)
as Dr. Fraser Healy
as Nancy Siebolski
as Rivet
