Bradley Whitford has been cast to guest star on “Shameless.”

The paid cable network announced today, “The West Wing” alum will appear in multi-episode arc on “Shameless’s” upcoming season.

Whitford will star as Abraham, “a powerful, well-dressed, sophisticated gay man who is a political activist.”

“Shameless” third season premieres Sun., Jan. 13.

In other casting news…

“The View” co-host, and movie veteran Whoopi Goldberg has been cast in the seventh episode of “666 Park Avenue.” Goldberg will guest star as Drake’s longtime resident who uses hypnosis to help Jane understand the building’s supernatural nature. [EW]

Lisa Edelstein has been tapped to guest star on CBS’ “Elementary.” The “House” alum will appear on the seventh episode of the Sherlock drama as Heather Vanowen, the confident and charismatic CEO of a high-end PR consultancy, TVLine reports. Additionally, Callie Thorne, who stars on “Necessary Roughness,” has been to guest star as Terry D’Amico Gregson’s former partner, on the series. Thorne is set to appear in the drama’s sixth episode. [TVLine]

Daniel Henney (“Three Rivers”) will play Michael Noshimuri, Adam’s brother, who was just released from Penitentiary after serving 15 years on “Hawaii Five-0.” [TV Guide]

“King Of Queens”‘ alum Patton Oswalt has been booked to appear in “Justified’s” forthcoming fourth season. Oswalt will play Bob Sweeney, a local constable who attended high school with Raylan and has been hired by the lawman to watch Arlo’s house. [TVLine]

Robbie Amell (“Revenge”) heads to “1600 Penn” in a recurring role. Amell joins the cast as D.B., a handsome, sweet young man. [EW]

“Up All Night” has booked “Alphas” actress Azita Ghanizada to star as Ava’s new-found best friend. TVLine reports. In addition, Tony Hale, who starred on “Veep” will play Dr. Welborn, Reagan’s flirty dentist. [TV Guide]