Carrie Preston reprises the role of attorney Elsbeth Tascioni on this Sunday's new episode of The Good Wife, the third time this actress has come on board the CBS hit.

So, what prompts the reemergence of a character Preston joked to me over the phone is "not like the other kids?"

"She's been hired by Alicia to help with a difficult case," Preston said. "Alicia is in a Catch-22 with a client: if she speaks out about him, she'd damned. If she does not, she's damned."

Conversations between Elsbeth and Alicia will be "strictly business," Preston added. Don't expect the latter to ask the former for any advice on her love life.

"It's tough for anyone to keep up with Elsbeth in the professional world," Preston laughed about a character she describes as "scatter-brained." "Much less talk to her about girlie things."

Aside from work on True Blood, which begins shooting season five in three weeks, Preston has a pair of movies coming out:

In Bag of Hammers, she portrays a single mother named Lynette. This woman ends up renting an apartment from a couple of con artists, who become far too prominent in the life of her son. It will be released later this year.

Preston also plays a small, but critical role in Sironia. She describes the part as a "cameo," but one that appears at the beginning of the film and then during a turning point later on. No release date has been set. Amy Acker, Jeremy Sisto and Courtney Ford, among others, also star in the movie.

The Good Wife airs Preston's "Executive Order 13224" Sunday night at 9 p.m. Watch its official preview NOW.

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.