Suggestions by @batboy1999

Hynden Walch

as Isabella Garcia-Shapiro in Phineas and Ferb (1997)

Jodi Benson

as Isabella Garcia-Shapiro in Phineas and Ferb (1997)

Anndi McAfee

as Isabella Garcia-Shapiro in Phineas and Ferb (1997)

Francesca Marie Smith

as Isabella Garcia-Shapiro in Phineas and Ferb (1997)

Kirsten Dunst

as Isabella Garcia-Shapiro in Phineas and Ferb (1997)

Mila Kunis

as Isabella Garcia-Shapiro in Phineas and Ferb (1997)

Lacey Chabert

as Isabella Garcia-Shapiro in Phineas and Ferb (1997)

Mae Whitman

as Isabella Garcia-Shapiro in Phineas and Ferb (1997)

Rachel Crane

as Isabella Garcia-Shapiro in Phineas and Ferb (1997)

Dwight Schultz

as Dr. Heinz Doofenshmirtz in Phineas and Ferb (1997)

Rob Paulsen

as Dr. Heinz Doofenshmirtz in Phineas and Ferb (1997)

Frank Oz

as Dr. Heinz Doofenshmirtz in Phineas and Ferb (1997)

Staci Keanan

as Candace Flynn in Phineas and Ferb (1997)

Melissa Joan Hart

as Candace Flynn in Phineas and Ferb (1997)

Frank Welker

as Perry The Platypus in Phineas and Ferb (1997)

Eddie Redmayne

as Ferb Fletcher in Phineas and Ferb (1997)

Billy West

as Phineas Flynn in Phineas and Ferb (1997)

Carlos Alazraqui

as Phineas Flynn in Phineas and Ferb (1997)

Tom Kenny

as Phineas Flynn in Phineas and Ferb (1997)

Rob Paulsen

as Phineas Flynn in Phineas and Ferb (1997)