10. Peggy the Chimp
Key Role: Bonzo in Bedtime for Bonzo (1951).
Oscar-worthy Moment: Playing a chimp raised as a human child by anthropologist Ronald Reagan, Peggy gives a surprisingly understated performance that doesn't upstage the future president's.
After the Limelight: Peggy starred in a sequel, Bonzo Goes to College (1953). But unlike other California cronies of Reagan's, she failed to land a White House job in 1981.