Suggestions by @kdude

Akash Vukoti

as Baljeet in Phineas and Ferb(story private)

Score: +1

Tom Hiddleston

as Lawrence Fletcher in Phineas and Ferb(story private)

Score: +1

Joel Dawson

as Ferb in Phineas and Ferb(story private)

Score: +1

J.K. Simmons

as Major Monogram in Phineas and Ferb(story private)

Score: +1

Ross Lynch

as Jeremy in Phineas and Ferb(story private)

Score: +1

Michael Cera

as Carl the Intern in Phineas and Ferb(story private)

Score: +1

Dee Bradley Baker

as Perry the Platypus in Phineas and Ferb(story private)

Score: +1

Jim Carrey

as Dr Doofenshmirtz in Phineas and Ferb(story private)

Score: +1

Gregory Mann

as Phineas in Phineas and Ferb(story private)

Score: +1

Nicolas Cantu

as Shaggy in Scooby doo(story private)

Score: +1

Millie Bobby Brown

as Velma in Scooby doo(story private)

Score: +1

Kevin Hart

as Scrappy Doo in Scooby doo(story private)

Score: +1

Frank Welker

as Scooby Doo in Scooby doo(story private)

Score: +1

Kiefer O'Reilly

as Fred in Scooby doo(story private)

Score: +1