Director: Robert Hughes
Phineas and Ferb get trapped in an alternate dimension where the evil Doofenshmirtz rules the tri-state area. They must find a way back home with the help of their pet platypus named Perry, who they discover is a secret agent.
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)
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)
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)