Dr. Zizmor Said No to 30 Rock

Dr. Jonathan Zizmor attends the benefit for Gilda's Club worldwide held at DKNY on September 28, 2006 in New York City. Photo: Paul Lowry/Flickr

Among the revelations made at last night's Paley Center panel on 30 Rock: Dr. Zizmor, the New York City dermatologist made famous by his subway ads, turned down a cameo on the show. Tina Fey explained with a Mrs. Zizmor impression: "[She] was like, 'He's a doctor.'" And Leo Spaceman isn't? (Oh, right.)