A judge issued an arrest warrant for ``Cheers'' actor Kelsey Grammer after he failed to appear in court to give a progress report on a court-ordered drug rehabilitation program he was ordered to attend. Van Nuys Municipal Judge Aviva K. Bobb on Wednesday issued the warrant for Grammer, 35, who plays the brainy psychiatrist Frasier Crane in NBC's television series ``Cheers.'' A police officer at the Van Nuys station jail said early today that Grammer was not in custody. Grammer's attorney, Robert L. Diamond, had said Wednesday his client was out of town and could not be reached. On Oct. 25, Bobb had ordered Grammer to enter the drug program after he was charged with one felony count of cocaine possession. Deputy District Attorney Andrew W. Diamond said Grammer, 35, of Van Nuys, never attended the rehabilitation program. ``He failed to comply, he didn't show up in court and now there is a bench warrant out for his arrest,'' Diamond said. ``Anybody can get busy, but you can't be that busy that you can't sign up for a program for seven months.'' Grammer was arrested on April 14, 1988, after police pulled him over for driving with expired license plates, according to court documents. He was arrested after a packet containing about a quarter of a gram of cocaine worth about $25 allegedly fell from his pocket as he sat in a patrol car on the way to the police station, the documents state. An earlier arrest warrant was issued after Grammer missed a Van Nuys Municipal Court appearance on Feb. 6. He had been scheduled to prove that he had completed an alcohol rehabilitation program and 10 days of community service. According to court documents, Grammer pleaded guilty on July 13, 1988, to a charge of driving under the influence.