Kathy Griffin: 'You’ll Never Convince Me to Like Jon Hamm'

Kathy Griffin has met a lot of different celebrities throughout her career – and she’s dishing about them in her new book Kathy Griffin’s Celebrity Run-Ins!

The 56-year-old actress and comedian had some not-so-pleasant things to say about 45-year-old Mad Men star Jon Hamm.

“You’ll never convince me to like Jon Hamm,” Kathy wrote (via Us Weekly). “The vibe I’ve always gotten from him is cold and somewhat disrespectful … toward me. I’m suggesting he’s one of these hot guys who’s mildly funny but actually thinks he’s comedian-level funny.”

Kathy shared that Jon came up to her at a dinner party once while she was trying to chat up Jack Nicholson.

“So when Hammy showed up, too, inside I thought, oh great,” she went on. “He even said to me, ‘What are you doing here?’ I said, ‘I earned my seat at the table. What are you doing here?’”

Kathy said that Jon continued to get drunk as she was discussing Rupert Murdoch with Jack.

“Hammy picks that moment … to start whispering boozy yammering into my ear,” Kathy added. “First it was, ‘You know your Emmy isn’t a real Emmy.’ I let that one go, but then he whispered, ‘You’re so o-o-o-old.’”

Also pictured inside: Jon grabbing breakfast with friends on Sunday (November 27) in Los Feliz, Calif.

Click inside to read the rest of what Kathy had to say about Jon…

“Look, I’ve been told I’m old and not funny by a lot of guys – a lot of hot guys, too – but not when I’m in an intimate conversation space with frickin’ Jack Nicholson, an opportunity I figured I’d never get again,” Kathy wrote. “That’s the real reason I can’t stand Hammy. The double whammy of cruel but not playful comments and the horrible timing. Again, he’s not a comedian, folks. Hopefully done with the drink, but probably still Don Draper-y.”