Suggestions by @johannarivera1

Mr. Lawrence

as Plankton in Looney Tunes: Rabbits Run (1955)

Kingston Foster

as Anais Watterson in Looney Tunes: Rabbits Run (1955)

JD McCrary

as Darwin Watterson in Looney Tunes: Rabbits Run (1955)

Elle Fanning

as Penny Fitzgerald in Looney Tunes: Rabbits Run (1955)

Jacob Tremblay

as Gumball Watterson in Looney Tunes: Rabbits Run (1955)

Penny Fitzgerald

as Lois Lane in Bedknobs and Broomsticks (1971)

Gumball Watterson

as Superman in Bedknobs and Broomsticks (1971)

Alkaio Thiele

as Zac Watterson in Toy Story 3 (2010)

Mr. Lawrence

as Plankton in Toy Story 3 (2010)

Kingston Foster

as Anais Watterson in Toy Story 3 (2010)

JD McCrary

as Darwin Watterson in Toy Story 3 (2010)

Elle Fanning

as Penny Fitzgerald in Toy Story 3 (2010)

Jacob Tremblay

as Gumball Watterson in Toy Story 3 (2010)

Sheldon J. Plankton

as Don Lino in Toy Story 3 (2010)

Anais Watterson

as Lola in Toy Story 3 (2010)

Darwin Watterson

as Lenny in Toy Story 3 (2010)

Penny Fitzgerald

as Angie in Toy Story 3 (2010)

Gumball Watterson

as Oscar in Toy Story 3 (2010)

Alkaio Thiele

as Zac Watterson in Bedknobs and Broomsticks (1971)

Wildest Dreams

as Soundtrack in Bedknobs and Broomsticks (1971)