Two more intriguing characters are headed to Harlem.

"Marvel's Luke Cage" will bring us new superhuman adventures when it returns in 2018, and actors Mustafa Shakir and Gabrielle Dennis have joined the mix. The two signed on to play characters debuting in Season 2, and will be part of the ongoing turbulence in the titular hero's New York City neighborhood.

Shakir will portray John McIver, a charismatic man and natural leader. It seems he doesn't just use those qualities for good, though -- apparently, he has a thirst for vengeance. Meanwhile, Dennis is set to play Tilda Johnson, a brainy holistic doctor who has a complex relationship with Harlem and a penchant for attracting trouble. We don't know the specifics of how they'll tie into Luke's crime-fighting yet, but we do know it's going to be interesting.

"I can't wait for audiences to see the compelling paces we put both Mustafa and Gabrielle through," said showrunner and executive producer Cheo Hodari Coker in a statement. "From the moment you see each of them on screen, I feel they will be powerful additions to the world of Marvel and Harlem's Luke Cage."

The two add to a cast that already includes Mike Colter, Simone Missick, Rosario Dawson, Alfre Woodard, and Theo Rossi.

"Luke Cage" Season 2 is coming to Netflix in 2018.

[via: Marvel]