Phineas and Ferb: The O.W.C.A. Files

Thomas Brodie-Sangster

Ferb (voice)

Vincent Martella

Phineas (voice)

Dan Povenmire

Dr. Doofenshmirtz / Additional Voices (voice)

Jeff 'Swampy' Marsh

Major Monogram / Additional Voices (voice)

Dee Bradley Baker

Perry / Additional Voices (voice)

Jane Kaczmarek

Maggie the Macaw (voice)

J.K. Simmons

Napoleon / Additional Voices (voice)

Josh Gad

Wendell (voice)

Paul Reubens

Parenthesis (voice)

Stephen Root

Floyd / Additional Voices (voice)

Tyler Alexander Mann

Carl (voice)