Supergirl is expanding its roster of supervillains during its first season. Joining already announced Reactron, Livewire and more is the DC villain known as Non.

According to The Hollywood Reporter, the character is described as a former scientist in a league with the House of El. Non is a brutal Kryptonian military officer who is sinister, powerful and angry. He’s the antithesis of all things Supergirl (Melissa Benoist) stands for. Non will quickly become Supergirl’s greatest threat.

And The Transporter star Chris Vance has been tapped to recur as Non. although his episode count is unknown.

If you are a fan of the Christopher Reeve Superman films, the character of Non appeared in Superman II and was played by Jack O’Halloran.

Supergirl premieres Monday October 26. 2015 at 8:30pm ET/PT on CBS and Global.