Robi / Agent #1 / Techie #1 / A.R.T. / Bink Bushnell / Dr. Gustav / Dr. Minkey (26 episodes, 2006-2008)
Dr. Phibes / Agent #2 / Dr. Phinius Phibes / Techie #2 / Dr. Phineus Phibes / Dr. Eisenhorn / French poodle / Mr. Havansimp / Mr. Invisible (26 episodes, 2006-2008)
Shaggy / Dr. Trebla / Shaggy Rogers / Agent #7 / Sparky (26 episodes, 2006-2008)
Scooby-Doo / Agent #3 / Fred Jones / Fred / Menace / General Macardle / Captain Miguel / Carla (26 episodes, 2006-2008)
Uncle Albert (24 episodes, 2006-2008)
Daphne Blake / Daphne / Misty Swiss (22 episodes, 2006-2008)
Velma Dinkley / Velma (21 episodes, 2006-2008)
(21 episodes, 2006-2008)
Chef Francoise / Kevin / Infomercial Guy / TV Narrator (3 episodes, 2006-2007)
Cat Lady (1 episode, 2007)
Bruce (1 episode, 2006)
Chef Sukihari (1 episode, 2006)
Nifties (1 episode, 2007)
Rex (1 episode, 2008)