The Monster of Phineas-n-Ferbenstein

Vincent Martella

Phineas Flynn (voice)

Thomas Brodie-Sangster

Ferb Fletcher (voice)

Ashley French

Candace Flynn (voice)

Caroline Rhea

Linda Flynn-Fletcher (voice)

Dee Bradley Baker

Perry the Platypus (voice)

Alyson Stoner

Isabella Garcia-Shapiro (voice)

Dan Povenmire

Heinz Doofenshmirtz (voice)

Bobby Gaylor

Buford Van Stomm (voice)

Jeff 'Swampy' Marsh

Francis Monogram (voice)

Maulik Pancholy

Baljeet Tjinder (voice)

Richard O'Brien

Lawrence Fletcher (voice)

Mitchel Musso

Jeremy Johnson (voice)

Kelly Hu

Stacy Hirano (voice)

Tyler Alexander Mann

Carl Karl (voice)

Malcolm McDowell

Grandpa Reg (voice)

Jennifer Grey

Additional Voices (voice)

Jane Carr

Grandma Winifred Fletcher (voice)

Jeff Bennett

Additional Voices (voice)

Candi Milo

Additional Voices (voice)