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)

Bobby Gaylor

Buford Van Stomm (voice)

Dan Povenmire

Heinz Doofenshmirtz (voice)

Jeff 'Swampy' Marsh

Francis Monogram (voice)

Maulik Pancholy

Baljeet Tjinder (voice)

Richard O'Brien

Lawrence Fletcher (voice)

Kelly Hu

Stacy Hirano (voice)

Mitchel Musso

Jeremy Johnson (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)

Greg Ellis

Jameson (voice)