Pulitizer Prize-winning cartoonist Berkeley Breathed is the creator of Bloom County, Outland, and Opus that feature such beloved characters as Bill the Cat, Opus, and Steve Dallas. He is also the author of numerous cartoon collection and children's books.

Berkeley has utilized his skills over the years to draw attention to issues concerning animals and the environment. Through the media of cartoons, he has been able to deliver messages of awareness and compassion to tens of millions of people around the world.

In 1989, Berkeley painted his character Opus on the side of the Sea Shepherd II in Key West, Florida. He also contributes his artwork to the Sea Shepherd Log, and recently created the "Seal of Approval" to bring awareness to the Canadian seal slaughter.