Robin's Law & Order Cameo

Robin Williams is to guest star in an episode of Law & Order: Special Victims Unit.

According to producers, he’ll play an engineer whose life has gone terribly wrong and who faces serious repercussions.

The episode, which films later this month, is scheduled to air on US TV on April 29.

The Special Victims Unit episode, which will be called Authority, will be the show's 200th.