Liu (Joel Ginsburg/WENN.com)

Coming up in primetime television.

Soaps.com has some exciting casting notes for the week of July 21, as well as details surrounding various upcoming season premieres, episode teasers and more in our latest Primetime Dish column…

American Horror Story: Freak Show:
Wes Bentley (“The Hunger Games”) has been cast in season four of the FX series as Eddie, who’ll be out for revenge, and will appear during the two-part Halloween special. TVLine is reporting that the episodes will tentatively air on October 21 and 28.

Arrow:
On Tuesday July 22 at 8:00 PM the CW will air a repeat of its January 29 episode titled “Tremors.” Then on Wednesday July 23 at 8:00 PM a repeat of its February 5 episode titled “Heir To The Demon” will air.

Backpackers:
It’s all about blackmail and cougars in the CW’s July 21 9:30 PM episode titled “A-MILF-ey Coast.” Monday episode teasers: Ryan and Brandon approach Beth’s family to ask for her travel itinerary. Her younger brother Ryan demands some topless photos in exchange for the information. Isabella Cucinota, Brandon’s childhood dream girl, is spotted on the Amalfi Coast, and Brandon accepts her invitation to go back to her place.

Boardwalk Empire:
The HBO series will air its fifth and final season containing eight episodes beginning on Sunday September 7.

Elementary:
Lucy Liu, who plays Dr. Joan Watson, will be stepping behind the scenes to direct an episode during the show’s upcoming season three, which returns at 10:00 PM on October 30. This will be Liu’s second directing gig with the CBS series.

Glee:
Though the original order was to be twenty-two episodes, the FOX series’ sixth and final season will consists of thirteen consecutive weekly episodes and will premiere come mid-season.

Grey’s Anatomy:
Premiere date! Read our Grey’s Anatomy Spoilers to find out when the ABC series returns with season eleven.

Major Crimes:
Ryan Kennedy (“Defiance”) will appear in the guest-starring role as Captain Sharon Raydor’s (Mary McDonnell) son Ricky Raydor. Look for him in the ninth episode of the TNT series’ season three, airing in August, Mondays at 9:00 PM.

Mistresses:
In ABC’s Monday July 21 10:01 PM episode titled “An Affair To Surrender,” Savi gets help saying goodbye to her adored home. April now understands how being a mistress could affect her role as a mother. Joss meets a celebrity supermodel and finds a way to prevent Harry from going back to Australia, and Karen has to deal with an issue surrounding her lover and her client.