PLATES FOR PARKINSON'S - Johnny Depp joins 55 celebrities from movie and television stars, to politicians and artists who have designed and autographed plates to be auctioned on EBay from April 20 to May 11 as a fundraiser for the Parkinson Society Maritime Region in Canada. Proceeds from the auction will benefit research, education programs and support services.

Each celebrity was asked to draw a tulip, the world-wide symbol of hope for Parkinson's. More than 1.2 million people in Canada and the US live with Parkinson's for which there is no known cause or cure. The plates can be viewed at www.auctionwire.ca/plates .

Celebrities participating include Johnny Depp, Phil Collins, Anne Murray, Sarah the Duchess of York, Rob Lowe, Tom Hanks, Martha Stewart, Muhammad Ali, Dwayne 'The Rock' Johnson, Sarah McLaughlin, Martina McBride, Daughtry, Anjelica Huston, Harrison Ford and William Shatner.

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Johnny Depp to voice character for Sponge Bob Square Pants

AF: Who are some of the biggest surprises that you've had, from the actors who've said "yes"?

AR: I also direct for various other studios, and for Nickelodeon, I worked on a series called Avatar, and I also do Spongebob Squarepants, and because Spongebob is such an enormous hit, many actors actually approach us, wanting to do it because... well, a lot of actors, the work that they do on-camera, in films, their children can't watch. Maybe they're R-rated movies, or just movies that aren't appropriate for small children... But they'll call us up and say, "My kid is a huge fan of Spongebob Squarepants."

David Bowie called and asked if he could be part of Spongebob Squarepants, Gene Simmons from KISS, and his significant other, Shannon Tweed, they came in and did some guest roles. Dennis Quaid has been asking to come in and read, and I'm a huge fan of his... I'm actually scheduled to record Johnny Depp in a couple of weeks. Those are all surprises, and those are all people who came to us.

As a matter of fact, when we were first doing the series The Batman, in 1991, Mark Hamill called me and said, "I want to be part of the series." I brought him in for a guest-star role, and he did a terrific job, and he said, "Thank you so much... but, Andrea, I want to be a part of the series." And so we ultimately cast him as The Joker, and he's been The Joker in so many episodes, so many incarnations, and he's just terrific at it.