Igor

A. Cheron Hall

Blind Orphan #2 / Blind Orphan #4 (voice)

Alexander Leondis

Blind Orphan #3 (voice)

Arsenio Hall

Carl Cristall (voice)

Chris McKenna

Christian Slater

Dr. Schadenfreude's Igor (voice)

Darius A. Kamali

Dimitri Toscas

Eddie Izzard

Dr. Schadenfreude (voice)

Frank Welker

Animals' vocal effects (voice) (uncredited)

Hervé Schneid

Jamée Deruso

James Lipton

Himself

Jay Leno

King Malbert (voice)

Jean-Luc De Fanti

Jennifer Coolidge

Jaclyn / Heidi (voice)

Jess Harnell

Announcer / Royal Guard #2 (voice)

John Cleese

Dr. Glickenstein (voice)

John Cusack

Igor (voice)