Smallville Cast: Where Are They Now?

One of the later additions to the show, Cassidy Freeman's Tess Mercer showed up in the eighth season and remained a part of it until the very end. And after that, Freeman has barely been out of work.

While she has starred in a few films - such as 2016 horror Fender Bender - she's remained active on television, appearing in episodes of The Vampire Diaries, Once Upon A Time and NCIS: New Orleans. Her biggest success, however, was undoubtedly her five-year stint as Cady in the A&E Network's western crime drama Longmire.

She can now be seen in HBO's comedy The Righteous Gemstones.