Christopher McCulloch Hank Venture / The Monarch / Hunter Gathers (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) J.K. Simmons Ben (voice) Dana Snyder The Alchemist (voice)