Kadro (20)
Doc HammerDr. Girlfriend / Henchman 21 (voice)
Christopher McCullochHank Venture / The Monarch (voice)
Patrick WarburtonBrock Samson (voice)
James UrbaniakDr. Venture (voice)
Michael SinterniklaasDean Venture (voice)
Misha CollinsPrisoner 2 / Maestro Wave (voice)
Patton OswaltWonderboy (voice)
H. Jon BenjaminThe Master (voice)
Nathan FillionBrown Widow (voice)
Stephen ColbertProfessor Impossible (voice)
Seth GreenLance Hale / Mrs. Z (voice)
Steve ParkMike Sorayama (voice)
Gillian JacobsMarsha Backwood (voice)
Kevin ConroyCaptain Sunshine (voice)
Charles ParnellJefferson Twilight (voice)
Lisa HammerTriana Orpheus (voice)
Brendon SmallAction Johnny (voice)Terrence FlemingCol. Bud Manstrong (voice)Miguel Martinez-JoffreMexican Gangster / Mexican Student (voice)
Paul BoocockDr. Jonas Venture (voice)