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