'The Walking Dead'
“The Walking Dead” returns to AMC for its fourth season in October. AMC

With the 4th of July marathon of “The Walking Dead” coming to a close, more spoilers about the highly anticipated fourth season are leaking out. The latest scoop on the AMC zombie series comes in the form of a leaked episode title and casting call.

According to SpoilerTV, the seventh episode of the fourth season will be called “Dead Weight.” The show is reportedly looking to cast two more characters who are presumably going to make their first (and potentially final) appearances in the episode.

The casting call is for two brothers who are about 30 years old. One, named Mack, is “an aggressive wiseass” who will be a recurring character. The second, named Patrick, is “fair-minded” and slated to only be a guest star. Based on the fact the Patrick character is only a “guest,” while the Mack character is “recurring,” we’re leaning toward the belief that Patrick may be the “dead weight” on the show and might be killed off pretty quickly.

This week, we reported that another new character joining “The Walking Dead” had been cast. In episode six, currently titled “Rise,” a character named Don will make his first appearance in a guest role. Don, who is between 50 and 70 years old, will be played by “Walk the Line” and “Talladega Nights: The Ballad of Ricky Bobby” actor Danny Vinson. Vinson’s character is described as “sometimes grumpy” and has a granddaughter.

Fans of “The Walking Dead” also recently learned the premiere episode title for season four. The spoiler came courtesy of TVLine, which revealed episode 401 will be called “30 Days Without an Accident.” Scripted by new showrunner Scott M. Gimple, the season four premiere is speculated to pick up sometime between four and 11 months after the Governor’s attack in the season-three finale.

Executive producer and special-effects makeup designer Greg Nicotero previously dished to AMC’s blog that the premiere is set to have some “great drama and great action.” Nicotro, who directed the premiere, teased: “In the first episode this season, one of the guys in my crew was like, ‘You did every gag that you ever did in three years of ‘The Walking Dead’ in one episode. We had walkers. We had mummified corpses. We had puppets. We had zombie bites.”

Nicotero’s comment on zombie bites whipped viewers into a frenzy -- especially after photos of a bandaged Rick leaked online.

“The Walking Dead” will return to AMC for its new season this fall. What are your thoughts on the episode titles and casting announcements for season four? Let us know in the comments section.