Dammit, Janet’s getting tough to lift.

Or so it seemed last Saturday night for Ron Maxwell, who as the nerdy character Brad from the “The Rocky Horror Picture Show,” was not exactly whipping Janet around during the floor show in front of the screen as easily as when he first began playing Brad in 1979.

But even dressed in drag, he pulled it off. And while delivering his final song, he ripped off his toupee, sending the nearly packed theater into a tizzy.

“Ugh, these high heels are killing me,” Mr. Maxwell, 49, said as he traipsed out of the theater at 2 a.m. with the rest of the cast members that act out the movie. “I’m going to have aches and pains for days.”

As the New York cast’s longest-standing member, he has put in well over 1,000 performances with “Rocky Horror,” and, for the past decade, has been doing midnight performances on Fridays and Saturdays at the Clearview Cinema on West 23rd Street in Chelsea.