Tahmoh Penikett

Tahmoh Penikett is a Canadian actor. He is known for playing Karl "Helo" Agathon on SyFy's 2004 television series Battlestar Galactica. He has appeared in TV series Supernatural, Dollhouse, and the Showcase time travel show, Continuum.

CRIMINAL MINDSS9, E14

200

When JJ is kidnapped, the BAU delves into her time at the State Department to find clues to her disappearance and uncover a secret mission that now puts her life in danger. To help with their search for JJ, the team calls upon Prentiss to help in the crisis. Guest stars include Paget Brewster (returning as Emily Prentiss), Jayne Atkinson, Esai Morales, Josh Stewart, Nicholas Brendon, and Debrah Farentino.
CASTLES5, E1

After the Storm

Castle and Beckett set aside questions about their relationship in order to take on the forces responsible for Beckett's mother's murder.
CASTLES4, E23

Always

Castle tries to protect Beckett as she pursues the man who shot her; the 12th precinct is forever changed as feelings and secrets are revealed.
SMALLVILLES3, E15

Resurrection

While his father is awaiting surgery, Clark befriends a young boy, Garrett (James Kirk), whose brother Vince (Tahmoh Penikett) dies from liver failure. However, everyone is shocked when Vince shows up at the hospital, alive and seemingly well--until his liver starts failing again. In a desperate attempt to keep his brother alive, Garrett straps a meteor-rock bomb to himself and demands that Vince be given Jonathan's liver.
FAIRLY LEGALS2, E3

Bait and Switch

Judge Nicastro orders Kate to mediate an insurance dispute between a fishing boat Captain and a deckhand who suffered a debilitating accident.
SMALLVILLES6, E21

Prototype

Lex has been clandestinely trying to turn Wes Keenan (Tahmoh Penikett), a military man who supposedly died fighting in Afghanistan, into a supersoldier by injecting him with DNA pulled from the various meteor freaks Lex has captured. After a corrupt Senator, Burke (Alan C. Peterson), threatens to expose the secret labs, Lex dispatches Wes to kill the Senator, but Lois witnesses the attack and inadvertently becomes the supersoldier's next target. Meanwhile, Clark tries to convince Lana to leave Lex.