Mark Hamill will voice not one but two characters in The Venture Bros. season 7. The animated series returns from a two-year hiatus this Sunday on Adult Swim, kicking off a 10-episode season that will wrap up season 6's Blue Morpho arc and deepen the show's already complicated mythology in ways fans could never expect.

Many are familiar with Hamill for his role as Luke Skywalker, but it's his voice-acting career which has been the most prolific. By far, his most recognizable voice-acting role is that of The Joker from Batman: The Animated Series, a role he's reprised for several animated DC projects since. Hamill will also regularly voice other DC characters, like The Trickster (a role he also plays in live-action on The Flash) and Swamp Thing. He's worked on Robot Chicken, Metalocalypse, Trollhunters, Regular Show, Avatar: The Last Airbender, and dozens of other animated films, cartoons, and videos games.

Related: Mark Hamill Comments On Carrie Fisher Appearing In Star Wars 9

Screen Rant had the chance to chat with Venture Bros.' co-creator, Jackson Publick at this year's San Diego Comic Con and he revealed Hamill's involvement, stating, "Mark Hamill did two characters for us in the same episode that couldn’t be more different."

Venture Bros Season 7 Monarch Henchman 21 Dean Venture

In an interview with Animation Magazine, Publick confirms the two characters Hamill voices are villains, one of whom is called Presto Chango. Publick described the role as "a classic comic-book trope character," adding that it's unlike any character the Venture Bros. have done before. Which, for a series that boasts as varied and colorful a cast of characters as Venture Bros. does, that's saying something.

Though a good number of the show's characters are voiced by Publick (real name Christopher McCulloch) and his co-creator, Doc Hammer - Hank Venture, The Monarch, Dr. Mrs. The Monarch, Henchman 21, Sgt. Hatred, and more - the role of Dr. Venture is performed by James Urbaniak, Patrick Warburton plays the Venture's bodyguard, Brock Samson, and Michael Sinterniklaas voices Dean Venture. Over the years, more actors have come aboard for a variety of roles, including Brendon Small, Clancy Brown, and Dana Snyder.

Most notably, however, Venture Bros. season 4 included Kevin Conroy as the heroic-but-troubled Captain Sunshine, a character who was both an inversion and a satire of Conroy's most famous role - Batman. With that in mind, Hamill adding his voice to Venture Bros. season 7 feels inevitable and he is sure to be a welcomed addition for fans of the series. Might season 7 see Captain Sunshine do battle with this villainous Presto Chango? It's hard to tell, but it'd be a reunion that would drive fans wild and help cement Venture Bros. as one of the best animated series of recent memory.

Next: Venture Bros. Season 7 Premiere Will Shock & Thrill Longtime Fans

The Venture Bros. season 7 premieres this Sunday, August 5th on Adult Swim with "The Venture Bros. & the Curse of the Haunted Problem".