"Suits" season five started off with an amazing first episode, with the usually cool, calm, and collected Harvey Specter finally losing his mind after his long-time secretary Donna leaves him for his colleague Louis Litt.

Harvey and Donna have remained pretty solid for the past few seasons, so this development was really a shocking twist to the legal drama series. Now, things are getting even steamier now that Louis' sister Esther Litt, played by Amy Acker, has come into the picture.

According to TV Line, Acker will have a recurring role this season five, so expect to see more of her character during the weeks to come. Esther has close ties to a very successful multi-million dollar company who now needs the help of Pearson Specter Litt, but of course, this scenario will open up a whole lot of family drama and legal squabbles for everybody involved.

Another thing that might cause further tension is her romantic link to Harvey. It looks like the two have something up their sleeves, even though Louis has already warned Harvey against a relationship with his sister. At the same time, their budding romance might cause even more friction between Harvey and Donna's ambiguous relationship.

In a promo clip from the episode entitled "No Puedo Hacerlo," Esther was first seen meeting with Louis and when asked what she was doing in his office, Esther answers: "A woman can't stop by to see her brother whom she loves?"

The next scene once again focuses on Louis, who talks to Harvey and asks him not to sleep with his sister. "The last thing I want to do is sleep with your sister," Harvey answers with conviction, but further scenes of Harvey and Esther smiling flirtatiously at each other only proves that his promise will soon be broken.

The other people who work for Louis Specter Litt will also question Louis' biological relationship with Esther, who looks and acts nothing like him. In the clip, someone even asks: "Was one of the two of you adopted?"

Apart from "Suits," Acker has appeared in several other television shows including "Person of Interest," "Angel," "Alias," and "Dollhouse." She has also ventured into film with appearances in movies such as "Catch Me If You Can," "The Cabin in the Woods," and "Much Ado About Nothing."

She has also lent her voice as Huntress in the animated series "Justice League Unlimited."