as Russell

as Rod Stool

as Grandpaw / Manhole Dog (voice)

as Balloon Vendor

as Older Felix

as Roy (voice)

as Byron Kane

as Gil/Manny (voice)

as Gil / Manny (voice)

as CC Glendale

as Gil / Manny (voice)

as Mr. Second Chance (voice)

as Judd Lumpkin

as Mr. Kerdle (voice)

as Frank Kanaskie

as Dr. Fraser Healy

as Nancy Siebolski

as Duke Peel (voice)

as Ben

as Uncle EP Leacock

as Barry

as Victor

as Nestor (voice)

as Jim Fenton

as Professor Pamplemoose (voice)

as Two Legs Joe (voice)

as Robert (voice)

as Harold Green

as Sam

as Hank Kringle

as Buddy (voice)

as Detective Hamish Slorach

as Additional Voices (voice)

as Lieber

as Robear (voice)

as Mr. Rutabaga

as Louis Owen

as Milo 55160

as Dr. Julius Booker

as Dr. Gavin Brookes

as Charlie Cowell

as Harold Green

as Duncan

as Darren

as Gary Hargrave

as Harold Green

as Gary Hargrave

as Lab Technician

as Roger

as Supervisor

as Jay Felger

as Marty Stephens

as Dr. Seigel

as Umberto Ortega

as Gary Redfield

as Umberto Ortega

as TV Reporter

as Snyder

as Billy the Club Manager

as Harold Green

as TV Man

as Barry Berlin (uncredited)

as Rivet