Vincent Martella
Phineas Flynn (voice)

Ashley French
Candace Flynn (voice)

Thomas Brodie-Sangster
Ferb Fletcher (voice)

Caroline Rhea
Linda Flynn-Fletcher (voice)

Richard O'Brien
Lawrence Fletcher (voice)

Dan Povenmire
Dr. Heinz Doofenshmirtz / Additional Voices (voice)

Jeff 'Swampy' Marsh
Major Francis Monogram / Additional Voices (voice)

Tyler Alexander Mann
Carl / Additional Voices (voice)

Dee Bradley Baker
Perry the Platypus / Dr. Diminutive / Additional Voices (voice)

Jay Leno
Colonel Contraction (voice)

Maulik Pancholy
Baljeet Tjinder (voice)

Bobby Gaylor
Buford Van Stomm / Additional Voices (voice)

Alyson Stoner
Isabella Garcia-Shapiro / Additional Voices (voice)

Kelly Hu
Stacy Hirano / Additional Voices (voice)

Jack McBrayer
Irving DuBois (voice)

Mitchel Musso
Jeremy Johnson (voice)

Seth Green
Monty Monogram / Additional Voices (voice)

Wallace Shawn
Saul (voice)

John O'Hurley
Roger Doofenshmirtz (voice)

John Viener
Norm / Dr. Bloodpudding / Additional Voices (voice)