'Stranger Things' star Eduardo Franco originally auditioned to play a different character on season 4

• Eduardo Franco originally auditioned to play a different character on "Stranger Things."
• He told Insider he read to play Eddie Munson.

Eduardo Franco joined "Stranger Things" season four as Jonathan Byers' best friend Argyle, but he originally tried out for a very different role.

"I read for Eddie," Franco told Insider Sunday on the MTV Movie & TV Awards red carpet, referencing the leader of the Dungeons & Dragons group, the Hellfire Club.

"I'm so happy it went to Joseph Quinn," Franco added of his "Stranger Things" costar. "He's incredible. He's so lovely. They made a beautiful decision. I back it a hundred percent."

—Entertainment Insider (@EntInsider) June 6, 2022

The fourth season of the hit sci-fi Netflix series follows high schoolers Byers (Charlie Heaton), Eleven (Millie Bobby Brown), Mike (Finn Wolfhard), Will (Noah Schnapp), Max (Sadie Sink), and the rest of the separated friend group as they're faced with a new villain in the form of Vecna (Jamie Campbell Bower) who threatens their hometown of Hawkins, Illinois.

Franco said he wouldn't mind fighting Vecna in the Upside Down.

The fourth season of "Stranger Things" has helped boost Kate Bush's 1985 single "Running Up That Hill" back up the music charts. Billboard reported that the song returned to the U.K.'s top 10 singles chart and was No. 2 in the US top 50 on Spotify because of the Netflix series.

In season four, episode four, Max uses the song to help escape Vecna and the Upside Down, the alternate parallel dimension trying to seep into Hawkins.

When Insider asked Franco what song would help bring him out of the Upside Down, he didn't hesitate with his go-to track.

"'Wake Up,' Rage Against the Machine,'" Franco said of the 1992 track, adding, "Something like that, something banging, something to get my blood pumping."

Surprisingly, Franco said he wouldn't mind staying in the Upside Down as he thinks his chances against Vecna, the season's villain, are pretty good.

"I might not even leave," Franco said if he was in the Upside Down. "I might just stay there and fucking fight Vecna. I think if that song came on and I'm in the Upside Down, I'm not going nowhere."

Maybe Argyle will head to the Upside Down on the second part of season four when the series returns to Netflix on July 1.

But don't expect to get any "Stranger Things" season four part two intel out of Franco. When asked if he could tease anything for the season's final two episodes, Franco said: "I wish I legally could. I really can't."

"Stranger Things" season four, part one — also starring David Harbour, Winona Ryder, and Caleb Mclaughlin — is streaming now on Netflix.