D. Neil Mark

Acting

27 Credits

Biography

D. Neil Mark is a Canadian actor who has appeared in numerous film and television productions. He starred in The 6th Day (2000), Fear (1996), and Fly Away Home (1996). In addition to his film roles, he has appeared in various series, including The X-Files (1993–2018), Stargate SG-1 (1997–2007), and Smallville (2001–2011).

D. Neil Mark

Biography

Known For

Smallville

Stargate SG-1

The X-Files

The X-Files

Fringe

Sliders

The Outer Limits

Andromeda

21 Jump Street

Dark Angel

Charlie St. Cloud

John Doe

Dead Ahead

They Nest

Y2K

The Santa Clause 2

The 6th Day

The Lone Gunmen

The Substitute

Rockpoint P.D.