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