When an attack on the O.W.C.A. incapacitates the animal agents, only Agent P and his animal trainees can save the day. Carl and Monogram fend for themselves.
Thomas Brodie-Sangster
as Ferb (voice)
Vincent Martella
as Phineas (voice)
Dan Povenmire
as Dr. Doofenshmirtz / Additional Voices (voice)
Jeff 'Swampy' Marsh
as Major Monogram / Additional Voices (voice)
Dee Bradley Baker
as Perry / Additional Voices (voice)
Jane Kaczmarek
as Maggie the Macaw (voice)
J.K. Simmons
as Napoleon / Additional Voices (voice)
Josh Gad
as Wendell (voice)
Paul Reubens
as Parenthesis (voice)
Stephen Root
as Floyd / Additional Voices (voice)
Tyler Alexander Mann
as Carl (voice)
