The Monster of Phineas-n-Ferbenstein

Overview

The boys learn about one of Ferb's Victorian ancestors, who helped a scientist create a monster. Meanwhile, Doofenshmirtz recalls the story of his great-great-grandfather Dr. Jekyll Doofenshmirtz.

Guest Stars

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)