Igor - 5.94★

John Cusack - Igor (voice)

Myleene Klass - Dr. Holzwurm (voice)

John Cleese - Dr. Glickenstein (voice)

Steve Buscemi - Scamper (voice)

Sean Hayes - Brain (voice)

Eddie Izzard - Dr. Schadenfreude (voice)

Jay Leno - King Malbert (voice)

Jennifer Coolidge - Jaclyn / Heidi (voice)

Molly Shannon - Eva (voice)

James Lipton - Himself

Christian Slater - Dr. Schadenfreude's Igor (voice)

Arsenio Hall - Carl Cristall (voice)

Jess Harnell - Announcer / Royal Guard #2 (voice)

Paul Vogt - Buzz Offmann (voice)

Frank Welker - Animals' vocal effects (voice) (uncredited)