Jon Cryer, Taylor Holland Jon Cryer, Taylor Holland

First Chuck Lorre, now Jon Cryer. Charlie Sheen is calling out his former on-screen brother for not contacting him during his dispute with Lorre, Warner Bros. and CBS.

"Jon has not called me. He's a turncoat, a traitor, a troll. Clearly he's a troll," Sheen told E! News Tuesday. "He issued a statement. Is it gonna take me calling him a 'traitor, juvenile and scared' for him to get it?"

Roseanne Barr says she feels sorry for Charlie Sheen — because he had to work with Chuck Lorre

Sheen first criticized his Two and a Half Men co-stars during Piers Morgan Tonight on Feb. 28 for failing to reach out to him. "I don't feel like there is any real support there," he said. "I'm out here doing this for all of us guys. ... It would be nice if there was some measure of support from anybody at this point."

Sheen and Cryer have starred together on the series since its 2003 debut. Cryer, who spoofed his sudden unemployment on Ellen last week, won an Emmy for best supporting actor in a comedy series for his role in 2009.

Charlie Sheen: No one from the show has tried to call me ... but Mel Gibson did!

Since his interview with Morgan, Sheen told E! News he has heard from co-stars Angus T. Jones, Conchata Ferrell, Melanie Lynskey and Marin Hinkle, as well as show director Jamie Widdoes. Sheen said he now has nothing to say to Cryer should he try to contact him.

"What's there to say? I'll tell him 'You're a little late. Goodbye, troll,' " Sheen said. "When I'm starring in multimillion-dollar films and he's begging me for a supporting role I'll say, 'You left me out in the cold with all of your guilt and stupidity.' "

Who should replace Charlie Sheen on Two and a Half Men?

Although it's unclear whether Sheen heard from TV mom Holland Taylor, the actress spoke fondly of the actor Tuesday. "Charlie was cordial and polite with all of his cast mates and crew, sometimes even courtly — and always witty," Taylor wrote in an e-mail to The Associated Press. "We watched movies at his house occasionally — warm evenings with interesting, spirited conversation. This is the guy I know."

Taylor is the first Men co-star to speak openly about working with Sheen since production was shut down on Season 8 and Sheen was subsequently fired from the sitcom.

"In this very sad and complicated time, I really have no comment beyond valuing my own history with Charlie, and my abiding affection for him."