The casting process for Terminator: Genesis is reaching its end. With principal photography beginning in just a few weeks, the 80s reboot has added G.I. Joe‘s Byung-hun Lee to cast, along with Mad Men‘s Michael Gladis and House Of CardsSadrine Holt.

According to THR (via /Film) Lee’s role is being kept under wraps, but the site teases that it’ll be “a doozy.” No information was given for Gladis and Holt’s characters.

Directed by Alan Taylor (Thor: The Dark World), the cast already includes Emilia Clarke, Jason Clarke, Jai Courtney, J.K. Simmons, Dayo Okeniyi and Arnold Scwarzenegger. Emilia Clarke will play Sarah Connor, while Jason Clarke will play her son (from the future) John Connor, and Courtney is playing his dad Kyle Reese. Schwarzenegger will reprise his role as the Terminator, and THR assures that his age difference will be explained (but will we buy it, that’s the real question). Okeniyi will play the son of Cyberdyne executive Miles Dyson, and Simmons will play a detective.

The film is said to have a “time-jumping narrative” that follows different plot threads from the previous franchise.

Lee is a huge star in South Korea, but he’s had a fair share of roles in Hollywood movies as well. He starred in G.I. Joe as Storm Shadow and The Raid 2. Gladis is best known for playing Paul Kinsey in Mad Men, but he’s appeared in a few films as well (Knights of Badassdom and Not Safe For Work). Holt had a recurring role on Netflix’s House of Cards.

Terminator: Genesis is set to hit theaters on July 1, 2015.

Are you excited for Terminator: Genesis?