Jon Cryer stars as Alan Harper on Two and a Half Men.  Alan is charlie's less successful younger brother.  Alan moves in with Charlie after his divorce from his first ex-wife, Judith.

Alan has weekend custody of his son, Jake, who lives with him at Charlie's.  Alan is a chiropractor, yet due to his alimony payments, is struggling and has to depend on his brother.

Alan gets married and divorced a second time to the very young and attractive, Kandi.  He's lovable and annoying at the same time.

Alan Harper Quotes

Evelyn: I'm deeply hurt.
Alan: With me or Charlie?
Evelyn: Charlie.
Alan: Great, come on in

Charlie: Oh, try MalibuPuddingGirls.com.
Alan: Pudding Girls?
Charlie: Trust me.
Alan: Oh ... ew.

Two and a Half Men Quotes

Judith: Don't you think you've had enough to drink at the magic show, Evelyn?
Evelyn: Excuse me, darling, but some of us deal with our boredom and depression the old-fashioned, non-prescription way

Evelyn: I'm deeply hurt.
Alan: With me or Charlie?
Evelyn: Charlie.
Alan: Great, come on in