Sitcom legend Cloris Leachman has joined the ensemble cast of "American Gods," the Starz adaptation of Neil Gaiman's bestselling fantasy novel.

TVLine reports the 89-year-old actress will play Zorya Vechernyaya, the eldest of three sisters who watch over the constellations, guarding against horrors forgotten by modern man.

Arriving with Leachman are Peter Stormare ("Prison Break") as Czernobog, the Slavic god of darkness and evil; Chris Obi ("Snow White and the Huntsman") as Anubis, the Egyptian god of the dead; and Mousa Kraish ("Parenthood") as The Jinn.

The drama follows an ex-convict named Shadow Moon (Ricky Whittle) who, upon early release from prison, is hired to be the bodyguard of a mysterious con man named Wednesday (Ian McShane). However, it’s soon revealed that Wednesday is an incarnation of All-Father Odin, who’s traveling America recruiting his fellow forgotten deities to wage an epic battle against the new American gods — manifestations of modern life and technology, like Internet, media and credit cards.

The cast also Emily Browning as Shadow’s wife Laura, Sean Harris as the leprechaun Mad Sweeney, Yetide Badaki as the love goddess Bilquis, Bruce Langley as petulant god Technology Boy, Jonathan Tucker as Shadow’s philosophical adviser Low-Key Lyesmith and Crispin Glover as the seemingly omniscient Mr. World.

Bryan Fuller and Michael Green are the writers and showrunners, with David Slade on board to direct the pilot and additional episodes. Gaiman will join all three as an executive producer. Production began earlier this week in Toronto.