Warren has not appeared as Susan Mayer's (Teri Hatcher) mother Sophie Bremmer-Flickman since the ABC show's first season.
Executive producer Bob Daily has revealed that Warren will be joined by former The Mary Tyler Moore Show star Valerie Harper, who will appear as Susan's booze-loving aunt Claire. TV Guide reports.
However, Bob Newhart will apparently not be returning to Wisteria Lane as Sophie's fifth husband Morty during Warren's upcoming stint.
Susan will reportedly be visited by her mother and aunt when she ends up in hospital following a riot featured in the final episode of 2010.
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