LAURA J. DOWNEY
03/05/2007 at 01:00 AM EST
The guy was born to be a Donnelly. "I grew up in the Bronx," says Guiry, 26, who plays troublemaker Jimmy, "and we were the only Irish family on the block." But that Donnelly violence he can do without. "In one episode I get my back slammed to the floor. They put a brace on me, but it still really hurt. Came out looking really cool, though."