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.

Man of Steel
The Last Victim
2 Hearts
Space Force: Battlefront
Trick 'r Treat
The Cold Heart of a Killer
Jonah
Rehab
Kiri and the Girl

Supernatural
Battlestar Galactica -
Dollhouse

Arrow · S1, E7

Muse Of Fire

Oliver meets a mysterious woman with dangerous secrets. Following an unfortunate turn of events, Tommy seeks Laurel's support.
Criminal Minds · S9, E14

200

The team investigate JJ's abduction by searching for clues during her time at the State Department. The team asks Prentiss for help.
Castle · S5, E1

After the Storm

Castle and Beckett are facing new questions, was this a one-time fling, or are they now a couple?
Castle · S4, E23

Always

In the season finale, Castle struggles to keep Beckett safe as she hunts down the man who shot her.
Supernatural · S9, E1

I Think I'm Gonna Like It Here

After Sam collapses, his doctor tells a frantic Dean that his brother is dying; Dean tries to make a deal with an angel.
Supernatural · S9, E18

Meta Fiction

When Castiel rejects Metatron's offer to join forces, a surprising plan is set in motion; Gadreel is apprehended.

Tahmoh Penikett

Movies

Shows

Guest Appearances