Vincent Martella

Phineas Flynn / Phineas-2 (voice)

Thomas Brodie-Sangster

Ferb Fletcher (voice)

Dee Bradley Baker

Perry the Platypus / Additional Voices (voice)

Ashley French

Candace Flynn / Candace-2 (voice)

Dan Povenmire

Dr. Heinz Doofenshmirtz / Doof-2 / Additional Voices (voice)

Richard O'Brien

Lawrence Fletcher / Lawrence-2 (voice)

Jeff 'Swampy' Marsh

Major Francis Monogram / Monogram-2 (voice)

Alyson Stoner

Isabella Garcia-Shapiro / Isabella-2 (voice)

Maulik Pancholy

Baljeet Rai / Baljeet-2 / Additional Voices (voice)

Bobby Gaylor

Buford Van Stomm / Buford-2 (voice)

Mitchel Musso

Jeremy Johnson / Jeremy-2 / Additional Voices (voice)

Tyler Alexander Mann

Carl (voice)

Kelly Hu

Stacy Hirano (voice)

John Viener

Norm / Normbots (voice)

Jack McBrayer

Irving (voice)

April Stewart

Additional Voices (voice)

Ariel Winter

Gretchen / Additional Voices (voice)

Caroline Rhea

Linda Flynn-Fletcher / Linda-2 / Additional Voices (voice)

Diamond White

Additional Voices (voice)

Doris Roberts

Mrs. Thompson (voice)

Fred Tatasciore

Additional Voices (voice)

Grey DeLisle

Additional Voices (voice)

Isabella Murad

Milly (voice)

Jeff Bennett

Additional Voices (voice)

Jaret Reddick

Danny (voice)

Jennifer L. Hughes

Additional Voices (voice)

Kevin Michael Richardson

Additional Voices (voice)

Laura Dickinson

Vocalist (voice)

Loni Love

Carl in Disguise (voice)

Todd Stashwick

Mr. Johnson (voice)

Danny Jacob

Ferb-2 (singing voice) (uncredited)

Slash

Self (uncredited)