These days, many celebrities take on causes and raise awareness of issues they care about. Some stars choose to speak on behalf of those who can't speak for themselves— animals, that is. From Pamela Anderson to Betty White, here are some famous animal rights activists.
Actor Alec Baldwin has appeared in the films ‘Beetlejuice,’ ‘The Hunt for Red October,’ and ‘The Departed,” among many others. He also starred as Jack Donaghy on the TV sitcom 30 Rock, for which he received three Golden Globes and two Emmy Awards.
Peter Singer is an Australian philosopher whose work in applied ethics has led to controversial views on abortion, animal liberation and infanticide.