Grey DeLisle
Emily Elizabeth Howard (voice) (132 eps)
Cree Summer
Cleo (voice) (131 eps)
John Ritter
Clifford the Big Red Dog (voice) (130 eps)
Kel Mitchell
T-Bone (voice) (130 eps)
Gary LeRoi Gray
Charley (voice) (130 eps)
Cam Clarke
Machiavelli "Mac" Handover (voice) (130 eps)
Kath Soucie
Jetta Handover (voice) (130 eps)
Terrence 'T.C.' Carson
Samuel (voice) (2 eps)
Nick Jameson
Sheriff Lewis (voice) (2 eps)
Candi Milo
Ms. Martinez (voice) (2 eps)
Edie McClurg
Mrs. Bleakman (voice) (1 eps)
Tony Plana
Victor / Pedro (voice) (1 eps)