Martha Plimpton has reportedly signed up for a multi-episode arc on Grey's Anatomy.

According to The Hollywood Reporter, the actress will first appear in the new season premiere as the mother of a young patient.

Plimpton has previously appeared in ER, Law & Order: SVU and 7th Heaven.

The sixth season of the Grey's is slated to begin Thursday, September 24 after the series premiere of FlashForward.