Christopher McCulloch

Hank Venture / The Monarch / Hunter Gathers (voice)

Doc Hammer

Henchman 21 / Dr. Mrs. The Monarch / Billy Quizboy (voice)

James Urbaniak

Dr. Venture / Phantom Limb / Jonas Venture Jr. (voice)

Michael Sinterniklaas

Dean Venture (voice)

Patrick Warburton

Brock Samson (voice)

Nina Arianda

Mantilla (voice)

Clancy Brown

Red Death / Daisy (voice)

John Hodgman

Snoopy (voice)

Hal Lublin

Clayton (voice)

Jane Lynch

Bobbi St. Simone (voice)

Charles Parnell

Jefferson Twilight (voice)

Jay Pharoah

Nuno Blood (voice)

Steven Rattazzi

Dr. Orpheus (voice)

J.K. Simmons

Ben (voice)

Dana Snyder

The Alchemist (voice)