Dennis O'Connor

2010s

1. 2012
   

   The Conspiracy

   Robert Williams

   68
2. 2010

   The Town Christmas Forgot

   Donavan

3. 

   Lost Girl

   Elder Buzz Porter · 1 episode

   76
4. 

   Republic of Doyle

   Pete Ryan · 1 episode

   74

2000s

1. 2004
   

   This Is Wonderland

   Barry Humble · 1 episode

2. 2000

   Backroads

   Marc Leduc

1990s

1. 1999

   War of 1812

   Sir George Prevost · 4 episodes

2. 1998

   Mark Twain's America in 3D

   Mark Twain (voice)

3. 1997

   End of Summer

   Otto

4. 1996

   Trilogy of Terror II

   Brig

5. Goosebumps: The Headless Ghost

   Otto

6. 

   Specimen

   Grandpa Vern

   42

7. Salt Water Moose

   Movie

8. 1995
   

   Goosebumps

   Otto · 1 episode

   77

9. Street Law

   Carruthers

10. 

    In the Mouth of Madness

    Cop

    65

11. No Exit

    Doctor

12. 1994
    

    The Santa Clause

    Mailman

    65
13. 1993

    The Dark

    Jake

14. 1992

    Split Images

    Jasinski

1980s

1. 1987

   Shades of Love: The Ballerina and the Blues

   Izzy

2. Heaven On Earth

   Carnival Barker

3. And Then You Die

   Movie

4. 1986

   The Park Is Mine

   Sergeant Duffy

5. 1984

   Sonatine

   Movie

6. The Slavers

   Bob

7. 1983

   For Those I Loved

   Le douanier à New York

8. The Tin Flute

   Phil Morin

9. 

   Siege

   Clark

   64

10. The Funny Farm

    Lorne Hawkins

11. 1980

    Hot Dogs

    Drunk in park

No release date

1. Tales from the Table

   Nick/Fletcher