| Voice Actor | James Urbaniak (as Dr. Venture / Jonas Venture Jr.), Patrick Warburton (as Brock Samson), Michael Sinterniklaas (as Dean Venture), Christopher McCulloch (as Hank Venture / Pete White / Sgt. Hatred / Col. Gentleman / Action Man), Doc Hammer (as Billy Quizboy / Rose), Mark Gagliardi (as Rocco), Hal Lublin (as Wide Wale / Boy / Whale Lice Henchman 2), Cristin Milioti (as Sirena / Millinery Ghosts), Steven Rattazzi (as Dr. Byron Orpheus / Vincenzo), Charles Parnell (as Jefferson Twilight), Dana Snyder (as The Alchemist / Bonibozo Tribesman), Brendon Small (as Hector / Swifty / Whale Lice Henchman 1), Paul Boocock (as Jonas Venture Sr.) |
