D. Neil Mark
Acting
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).
Filmography
27 credits
Born to Raise Hell
Movie • 2010
Steve
The Substitute
Movie • 1993
Rusty
Y2K
Movie • 1999
Quantum Co-Pilot
Dead Ahead
Movie • 1996
Eric Payeton
They Nest
Movie • 2000
Harbor Patrolman
Deadlocked: Escape from Zone 14
Movie • 1995
Cop #1
Storm Chasers: Revenge of the Twister
Movie • 1998
1st Crew Member
The Santa Clause 2
Movie • 2002
Teacher
Contagious
Movie • 1997
Lab Technician
The 6th Day
Movie • 2000
Security Guard
Charlie St. Cloud
Movie • 2010
EMT
Night Visitors
Movie • 1996
MP #2
Turbulence 2: Fear of Flying
Movie • 1999
Naval Officer
The Italians Are Coming
Movie • 2025
Bill
Smallville
TV • 2001
McNulty
Stargate SG-1
TV • 1997
Frakes
The Lone Gunmen
TV • 2001
Rockpoint P.D.
TV • 2003
The X-Files
TV • 1993
S.W.A.T. Team Officer
Dark Angel
TV • 2000
Checkpoint Cop 2
The Outer Limits
TV • 1995
Guard
The X-Files
TV • 1993
Deputy Scott Kerber
Andromeda
TV • 2000
Alexandros
Sliders
TV • 1995
Stationary Biker
Fringe
TV • 2008
ND Agent
21 Jump Street
TV • 1987
Scott Arbogast
John Doe
TV • 2002
Uniformed Officer