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