Twenty Years to Midnight

Cast

• 

  Doc Hammer

  Dr. Girlfriend / Henchman 21 (voice)

• 

  Christopher McCulloch

  Hank Venture / The Monarch (voice)

• 

  Patrick Warburton

  Brock Samson (voice)

• 

  James Urbaniak

  Dr. Venture (voice)

• 

  Michael Sinterniklaas

  Dean Venture (voice)

• 

  Stephen Colbert

  Professor Impossible (voice)

• 

  Paul Boocock

  Dr. Jonas Venture (voice)

• 

  Brendon Small

  Jonny Quest (voice)

• Mia Barron

  Sally Impossible / Jonas Jr.'s Ibezan Houseguest (voice)