April Malloy (Rochelle Aytes) will have a new client when season 4 of "Mistresses" returns on ABC.

According to a report from TVLine, transgender actor/comedian Ian Harvie was tapped to appear in a multi-episode arc in the fourth season of "Mistresses." He will portray the role of a rich financier who will hire April to decorate his house. But the sudden closeness of the two could pose a threat to April's budding romance with Marc (Rob Mayes).

Aside from Harvie, "Homeland" star Navid Negahban is also joining the cast of "Homeland" season 4. The actor will play the role of rich Persian businessman Jonathan Amadi. His character description revealed that Jonathan is a self-assured and charismatic businessman who enjoys developing new businesses, especially if rising stars such as Harry (Brett Tucker) are involved.

They will be joined by another new character named Robert, who will be portrayed by "We Are Men" star Jerry O'Connell. The character is set to assist Karen Kim (Yunjin Kim) in her clinic while moonlighting as an actor. Though he will be involved with changing baby diapers in the clinic, it is also possible that the two will eventually have a future romantic relationship.

Another new addition in the "Mistresses" roster in season 4 is "The Game" star Tia Mowry, who will portray the role of literary agent Barbara Rutledege.

Season 4 will also see the return of Harry's sister Kate Davis (Tabrett Bethell). She was last seen back in season 2 when Harry contemplated on returning to Australia to acquire the seafood shack by the beach that he loved while growing up. But it seems like Kate will be more present in her brother's life as she returns to the series.

Would Kate's return pose a threat to the romance between Harry and Joss (Jes Macallan).

"Mistresses" season 4 is expected to air sometime this summer.