Series Cast 23

1. 

   Doc Hammer

   Dr. Girlfriend / Henchman 21 (voice) (81 Episodes)

2. 

   Christopher McCulloch

   Hank Venture / The Monarch (voice) (81 Episodes)

3. 

   Patrick Warburton

   Brock Samson (voice) (81 Episodes)

4. 

   James Urbaniak

   Dr. Venture (voice) (81 Episodes)

5. 

   Michael Sinterniklaas

   Dean Venture (voice) (81 Episodes)

6. 

   Steven Rattazzi

   Dr. Orpheus (voice) (31 Episodes)

7. 

   Lisa Hammer

   Triana Orpheus (voice) (14 Episodes), Jeanie / Leslie Cohen / Lesliebots (voice) (1 Episode), Jeanie (Mrs. Tom) (voice) (1 Episode), Princess Tinglepants (voice) (1 Episode)

8. 

   Cristin Milioti

   Sirena (voice) (6 Episodes), Mrs. Fitzcarraldo (voice) (1 Episode), Kate (voice) (1 Episode), Receptionist (1 Episode), Stab Girl (voice) (1 Episode), Mrs. Wandering Spider (voice) (1 Episode), Madison (voice) (1 Episode), Novia (1 Episode), Nurse (voice) (1 Episode), Millinery Ghosts (voice) (1 Episode), Night Nurse Cindy Marie Abrams (voice) (1 Episode)

9. 

   Paul Boocock

   Dr. Jonas Venture (voice) (4 Episodes), Dr. Jonas Venture / Additional Voices (voice) (2 Episodes), Dr. Jonas Venture / OCLF Leader (voice) (1 Episode), Highway Cop / Scared Straight Kid 1 (voice) (1 Episode), Jonas Venture Sr. / Sandow / Samuel Clemens (voice) (1 Episode), Priest 1 / Jonas Venture (voice) (1 Episode), Sonny / Interpreter / Little Jorgé (voice) (1 Episode), Fighter Pilot / O.S.I. Instructor (voice) (1 Episode), Tigerriffic / Therapist / Prison Guard 2 (voice) (1 Episode), Jonas Venture Sr. / Additional Voices (voice) (1 Episode), Dr. Jonas Venture / More Pirates (voice) (1 Episode)

10. 

    Brendon Small

    Action Johnny (voice) (2 Episodes), Agent Hauser (voice) (1 Episode), Surgeon / OSI Scientist / SPHINX Agent 1 (voice) (1 Episode), Resistance 1 (voice) (1 Episode), Jonny Quest (voice) (1 Episode), Plastic Surgeon (voice) (1 Episode), Swifty / Hector / Crime-o-dile Henchman / White Noise (voice) (1 Episode), Sgt. Hatred (voice) (1 Episode)

11. 

    Dana Snyder

    The Alchemist (voice) (2 Episodes), President Breyer (voice) (1 Episode)

12. 

    Bill Hader

    Professor Impossible (voice) (1 Episode), Professor Impossible / Phage (voice) (1 Episode), Professor Impossible / Alien villain (voice) (1 Episode)

13. 

    Toby Huss

    General Treister (voice) (2 Episodes), Scaramantula (voice) (1 Episode)

14. 

    H. Jon Benjamin

    The Master (voice) (2 Episodes)

15. 

    Stephen Colbert

    Professor Impossible (voice) (2 Episodes)

16. 

    Kevin Conroy

    Captain Sunshine (voice) (2 Episodes)

17. 

    Charles Parnell

    Mandalay (voice) (1 Episode), Jefferson Twilight (voice) (1 Episode)

18. 

    Patton Oswalt

    Wonderboy (voice) (1 Episode)

19. 

    Nathan Fillion

    Brown Widow (voice) (1 Episode)

20. 

    Seth Green

    Lance Hale / Mrs. Z (voice) (1 Episode)

21. 

    Steve Park

    Mike Sorayama (voice) (1 Episode)

22. 

    John Hodgman

    Dale Hale (voice) (1 Episode)

23. 

    Gillian Jacobs

    Marsha Backwood (voice) (1 Episode)

Series Crew 10