DC villain Psycho-Pirate will reportedly appear in "Elseworlds," this year's Arrowverse crossover.

According to Entertainment Weekly, Bob Frazer (The 100) will appear as Psycho-Pirate, who is an inmate at Arkham Asylum in the upcoming crossover between CW's Arrow, The Flash and Supergirl.

RELATED: Arrowverse Crossover Heads to Chicago For Gotham City Scenes

Although many details about the upcoming crossover are unknown, a number of actors are set to make their Arrowverse debuts, including Ruby Rose as Batwoman/Kate Kane, Elizabeth Tulloch as Lois Lane and LaMonica Garrett as The Monitor. The event will also see the return of Tyler Hoechlin as Superman. Set photos have revealed that Grant Gustin and Stephen Amell will seemingly play an alternate version of the Trigger Twins.

Created by Gardner Fox and Murphy Anderson, Psycho-Pirate, also known as Roger Hayden, first appeared in 1965's Showcase #56. The character's golden Medusa mask gives him the power to manipulate emotions. It's not clear at this time how major Psycho-Pirate's role will be in the Arrowverse going forward. Another version of the character named Charles Halstead appeared in 1944's All-Star Comics #23. The report indicates that the Arrowverse crossover will make use of the former, rather than the more obscure latter.

“Elseworlds,” this year’s Arrowverse crossover event, will begin with The Flash on Sunday, Dec. 9 at 8 pm ET, continue with Arrow on Monday, Dec. 10 at 8 pm ET and end with Supergirl on Tuesday, Dec. 11 at 8 pm ET.

RELATED: First Official Look at Arrowverse's Elseworlds the Monitor Revealed