Baker, who plays convicted killer Colin Sweeney, first appeared in Season 1 as a client of Alicia (Julianna Margulies), who got him off the hook for murder. He was, however, sent to prison for another murder in a later episode. In Season 3, Sweeney is reportedly being sprung from jail to help Alicia with a case. TVLine.com first reported the news.
The 51-year-old actor, who is slated to return in an October episode, joins previously announced guest stars Parker Posey, Peter Jacobson, Lisa Edelstein, Eddie Izzard, Harvey Fierstein and a return appearance from Kelli Giddish.
The Good Wife returns on Sunday, Sept. 25 at 9/8c on CBS.