‘The Flash’/‘Supergirl’ Musical Crossover Spoilers: Will Malcolm Merlyn Show Up In The Episode?

Can fans expect Malcolm Merlyn (John Barrowman) to appear in the “Flash”/“Supergirl” musical crossover?

Given Barrowman’s long list of musical credits, Nerdist asked the 49-year-old actor if he will be reprising his role as Malcolm in highly anticipated mash-up episode. Although he admitted at the time that he had no idea whether or not he’ll be in it, he said that he personally thinks that the producers of the show “will be silly not to utilize all the talents of everybody that they have there.”

“We’ve got a lot of theater musical people. You know, Victor [Garber] and Grant [Gustin], tons of people. Let’s use it,” he added.

Since his debut in professional theatre, Barrowman has played lead roles in various musicals both in the West End and on Broadway. Those stage productions include “Miss Saigon,” “The Phantom of the Opera,” “Sunset Boulevard” and “Matador.” In 1998, he was nominated for Laurence Olivier Award for Best Actor in a Musical for his role as Cal Chandler in Sam Mendes’ production of “The Fix.”

When asked what would be Merlyn’s song in the crossover in the event he’ll pop up in it, Barrowman started singing The Script’s “Superheroes.” Watch it here.

In an interview with IndieWire two weeks ago, executive producer Greg Berlanti said that fans can expect some original songs from the musical.

“Next week we’ll have to start talking about clearing music,” he said at the time. “I have a few ideas for tone and style in my head but we’re just starting to talk about what that can be. I do want to try and get an original piece of music written. As we make a deal on that we’ll probably make some announcements on the original songs.”

While the villain for the musical crossover is being kept under wraps, executive producer Andrew Kreisberg said in an interview with Collider last month that the baddie in the episode “can make you think your friends are singing and dancing in front of you.”

The air date of the musical crossover has yet to be announced, but “The Flash” Season 3 premieres on Tuesday, Oct. 4, while “Supergirl” Season 2 debut episode airs on Monday, Oct. 10. Both shows air at 8 p.m. on The CW.