Cast (32)
- Paul Hunham
- Self
- Dr. Mobley
- Jerry Heller
- Dr. Lawrence Hayes
- Aleksei Sytsevich / The Rhino
- Ralph
- Theophilus Freeman
- Chet (voice)
- Paul Gill
- Tom Duffy
- Kingsley
- Nick (Santa) Claus
- Hertz
- Inspector Uhl
- Joe Gould
- Tim the Gate Guard (voice)
- Miles
- Shorty
- Gordo
- Harvey Pekar
- Marty Wolf
- Limbo
- Toby Oxman
- John
- Rudy
- Sergeant William Hill
- Blaine (uncredited)
- Simeon
- Bellman
- Kenny
- FBI Technician