A judge has revoked probation and issued an arrest warrant for actor Daniel Baldwin after he failed to appear in court for a scheduled progress report on his ongoing rehabilitation, stemming from a drug arrest occurring last year.

Los Angeles Superior Court Judge Scott Millington issued the warrant after the actor failed to show up in court as scheduled this past Friday morning.

The actor, 47, is the brother of actors Alec Baldwin (star of 30 Rock), William Baldwin and Stephen Baldwin and has starred on numerous TV shows, including "Homicide: Life on the Street," and was also in some movies and stuff.

A scruffy Daniel Baldwin ran afoul of the law in April 2006 when he was arrested in a Los Angeles-area motel for possession of cocaine and drug paraphernalia.

As celebrities go, he's D-list at best. But as celebrity mug shots go, this one is a definite B, maybe even a B+ (you can see a little bit of Nick Nolte here).

Daniel Baldwin entered the drug rehabilitation program in hopes of having the pair of charges dismissed. At a February hearing, his attorney said the actor had completed various programs and was continuing treatment.

He and Britney Spears bonded in rehab in February. We're serious.