Carrie-Anne Moss, best known as Trinity from the “Matrix” series, is the latest to join Netflix’s upcoming Marvel series “A.K.A. Jessica Jones,” and as a rather mysterious character.

Marvel announced on Tuesday that the “Matrix” actress would co-star in the new series, which will follow former superhero Jessica Jones as she attempts to rebuild her personal life and work as a New York City detective. Moss’ character is described by Marvel only as “a no-nonsense woman who could prove a powerful ally to Jessica.”

However, according to The Wrap, Moss will reportedly play a character named Harper, which may be a new addition to the Marvel universe. Den of Geek pointed out that there’s no one by the name of Harper in the Alias comics the series will be based on (but perhaps the character is from The Pulse comics Jones also appears in). Regardless, we just hope is Moss will get to do some more bullet time.

Krysten Ritter will star in the 13-episode series as the titular character, along with “Doctor Who” star David Tennant as villain Zebediah Killgrave, Mike Colter as Luke Cage, and Rachael Taylor as Trish Walker. “A.K.A. Jessica Jones” will premiere on Netflix later this year, following Marvel’s “Daredevil,” which debuts on April 10.

For more, head to Marvel.