Suggestions by @nicholasrenniemeyenn

Brandy Norwood

as Author, Barbie in Barbie (1995)

James Marsden

as Mattel executive #1 in Barbie (1995)

Leelee Sobieski

as Doctor Barbie in Barbie (1995)

Fairuza Balk

as Weird Barbie in Barbie (1995)

James Van Der Beek

as Aaron Dinkins in Barbie (1995)

Lark Voorhies

as Growing up skipper in Barbie (1995)

Scott Wolf

as Other Ken in Barbie (1995)

Julia Stiles

as Midge in Barbie (1995)

Rachel Leigh Cook

as Nobel prize, Barbie in Barbie (1995)

Cuba Gooding Jr.

as Dr Ken in Barbie (1995)

Brendan Fraser

as Ken in Barbie (1995)

Will Smith

as Fresh Ken in Barbie (1995)

Drew Barrymore

as Diplomat Barbie in Barbie (1995)

Jim Carrey

as Mattel CEO in Barbie (1995)

Aaliyah

as Mermaid Barbie in Barbie (1995)

Seth Green

as Allan in Barbie (1995)

Olsen Twins

as Sasha in Barbie (1995)

Jennifer Aniston

as Gloria in Barbie (1995)

Karyn Parsons

as Present Barbie in Barbie (1995)

Alicia Silverstone

as Barbie in Barbie (1995)