Ernie Trigg, the police archivist of paper files and the pre-computer information. He helps Frost with knowledge of known associates and crime methods he has collected over the years that are not available in the police computer system. He and Frost knew each other long before they were both stationed at Denton.
Appearances
A Touch of Frost
Main cast, played by Arthur White
- Episode 2x01: A Minority of One (Jan 9, 1994)
- Episode 3x02: Quarry (Jan 15, 1995)
- Episode 3x03: Dead Male One (Jan 22, 1995)
- Episode 3x04: No Refuge (Jan 29, 1995)
- Episode 5x02: House Calls (Feb 16, 1997)
- Episode 5x03: True Confessions (Feb 23, 1997)
- Episode 5x04: No Other Love (Mar 2, 1997)
- Episode 6x01: Appendix Man (Mar 7, 1999)
- Episode 6x03: Private Lives (Mar 21, 1999)
- Episode 6x04: Keys to the Car (Mar 28, 1999)
- Episode 7x01: Line of Fire: Part 1 (Dec 25, 1999)
- Episode 7x02: Line of Fire: Part 2 (Jan 1, 2000)
- Episode 8x01: Benefit of the Doubt: Part 1 (Jan 14, 2001)
- Episode 8x02: Benefit of the Doubt: Part 2 (Jan 15, 2001)
- Episode 9x01: Mistaken Identity: Part 1 (Jan 27, 2002)
- Episode 9x02: Mistaken Identity: Part 2 (Jan 28, 2002)
- Episode 10x01: Hidden Truth (Jan 19, 2003)
- Episode 10x03: Held in Trust (Sep 14, 2003)
- Episode 11x01: Another Life (Oct 26, 2003)
- Episode 11x02: Dancing in the Dark (Feb 22, 2004)
- Episode 12x01: Near Death Experience (Sep 25, 2005)
- Episode 13x01: Endangered Species (Nov 5, 2006)
- Episode 14x01: Mind Games (Oct 12, 2008)
- Episode 14x02: Dead End (Oct 19, 2008)
- Episode 14x03: In the Public Interest (Oct 26, 2008)
- Episode 15x01: If Dogs Run Free: Part 1 (Apr 4, 2010)
- Episode 15x02: If Dogs Run Free: Part 2 (Apr 5, 2010)