Rita Moreno and Allison Janney will guest star in the third season of USA's "In Plain Sight," which has its season premiere March 31.
Moreno will play the aunt of Cristian de la Fuente's character Raph, who is in the midst of planning his wedding ceremony with Mary (series star Mary McCormack). Janney has the role of a newly appointed U.S. Marshal who clashes with Mary.
Steven Weber (as an FBI agent for two episodes) and Tess Harper (as a federal prosecutor) will also appear as guest stars in the coming season, the network said.
Grammy-winner Liz Phair has been brought on to be the show's music composer. Phair has previously worked on "90210," "Swingtown" and "The Beautiful Life."