A Baywatch babe, an astronaut and a gold medal figure skater are among those who'll compete on the upcoming spring season of Dancing With the Stars. Host Tom Bergeron and former finalist Melissa Rycroft revealed the cast of the ABC dance show Monday. It includes Pamela Anderson, astronaut Buzz Aldrin and reality stars Jake Pavelka and Kate Gosselin. Also competing for the mirror ball trophy will be gold medal figure skater Evan Lysacek, sportscaster Erin Andrews, singer Nicole Scherzinger, football star Chad Ochocinco and actors Shannen Doherty, Aiden Turner and Niecy Nash. Dancing With the Stars returns on March 22.