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
Scott Turow's Innocent
The Last Victim
Trick 'r Treat
2 Hearts
The Devil Has a Name
Killbird
Jonah
Space Force: Battlefront

Supernatural
Dollhouse

Smallville · S3, E15

15. Resurrection

While Clark's father awaits surgery, a boy at the hospital straps a kryptonite bomb to himself and demands that Jonathan's liver go to his ailing brother.
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.
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.
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.
Smallville · S6, E21

21. Prototype

A crooked senator threatens to expose Lex's DNA experiments on a military man; Clark tries to convince Lana to leave Lex.

Tahmoh Penikett

Movies

Shows

Guest Appearances