Why Supernatural's Gadreel Looks So Familiar

Ten years before arriving on the fantasy show "Supernatural," Penikett was a main character in the 2003 "Battlestar Galactica" television series. He portrayed Lieutenant Karl "Helo" Agathon. Fans might recall how the fate of the lieutenant's life was ambiguous: Penikett's role was new to the 2003 miniseries and wasn't intended to stay in the miniseries.

However, fans and producers loved the character and Penikett's performance so much that he was upgraded to being a series regular in the following longer series "Battlestar Galactica," which lasted for four seasons. Penikett's character also had the first successful human-Cylon child with his crew partner Sharon Valerii (Grace Park) who was actually a Cylon.

"Battlestar Galactica" watches the aftermath following the Twelve Colonies of Kobol, a group of planets, being attacked by an android army called Cylons. The surviving humans try their hardest to escape as the Cylons want to eradicate them. The humans find the remaining military ship Galactica and board it as they begin a journey to find the thirteenth colony: Earth.

In an interview with The TV Addict, Penikett reflected on his career and the legacy of being on "Battlestar Galactica," stating, "It is surreal but I'm not a guy who takes it for granted. I'm very grateful for everything that has happened in my career and I think you have to be."