Pam Dawber: Earthly Delight!

10/29/2007 5:48 PM PDT

Pam Dawber: Earthly Delight!

Mark Harmon's 56-year-old wife turned up at a Big Brothers Big Sisters benefit in Beverly Hills this weekend, looking out of this world! Nanu nanu!

This natural beauty isn't Rambotoxed and pulled like other stars her age -- she's a real Hollywood alien!