Juliette Lewis, Callum Keith Rennie Juliette Lewis, Callum Keith Rennie

Another two actors have joined The Firm.

Juliette Lewis and Callum Keith Rennie have been cast in NBC's legal drama, which is based on John Grisham's bestselling novel, the network announced Tuesday. They join Josh Lucas, who stars as attorney Mitchell McDeere, a role that Tom Cruise played in the film adaptation of the novel.

Josh Lucas near deal to star in NBC's The Firm

Lewis will play Mitch's trusty and colorful receptionist who feels uncomfortable in their new, more conservative law practice. She's distracted by her on-again, off-again relationship with his older brother, Ray (Rennie). Ray once was jailed for manslaughter and thus has a unique perspective when it comes to working for Mitch as an investigator.

Production on The Firm begins in August in Toronto. The legal drama will premiere on NBC in midseason.