In a new sneak peek for tonight’s episode of The 100, see Ty Olsson’s Grounder character come to the aid of Octavia.

The 100 season 2, episode 2 airs tonight! In the episode, Octavia (Marie Avgeropoulos) will face off against a group of Grounders, including Adina Porter’s character Indra.

Related: The 100 season 2, episode 2 stills, synopsis: Octavia takes charge

She’ll also meet the village healer Nyko, played by Battlestar Galactica vet Ty Olsson (wow, The 100 really seems to be making its way down the BSG cast list).

Watch him in action in a sneak peek, which can be watched over at TV Line.

In the video, Nyko introduces himself and explains that he helped her (presumably by giving her the antidote) because Lincoln (Ricky Whittle) is his friend.

He’s cagey about where Lincoln is, however. He tells her to run, and that Lincoln is “answering for what he’s done.”

Octavia tries to convince Nyko to help her free him, but he refuses. So Octavia, being badass, knocks him out with a rock. “Thank you for saving my life,” she says, as a way to… er, soften the blow?

Aside from playing Captain Kelly on Battlestar, Ty Olsson is best known for his roles in Supernatural, Breaking Dawn and Shattered.

The 100 season 2, episode 2 “Inclement Weather” airs tonight at 9/8c on The CW.