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John Mossman

Cast & creator

John Mossman

Best known for Chicago Fire, JAG, Good Guy with a Gun

Movies

8

film credits

Series

2

television credits

Career

6

1995–2025 · acting roles

Credit score

7.2

average across scored titles

Signature credits

Known for

Ordered by popularity

Chicago Fire

Chicago Fire

Shanks · 2012

JAG

JAG

Crew Chief · 1995

Good Guy with a Gun

Good Guy with a Gun

Director · 2022

Good Guy with a Gun

Good Guy with a Gun

Writer · 2022

When Jeff Tried to Save the World

When Jeff Tried to Save the World

Mike · 2017

Across film & television

Filmography (10)

Search filmography

Showing 10 of 10 credits

Chicago Fire

Chicago Fire

Shanks

JAG

JAG

Crew Chief

Good Guy with a Gun

Good Guy with a Gun

Director

Good Guy with a Gun

Good Guy with a Gun

Writer

When Jeff Tried to Save the World

When Jeff Tried to Save the World

Mike

The Misadventures of Mistress Maneater

The Misadventures of Mistress Maneater

Viktor

Fitting Descriptions

Fitting Descriptions

Director

Everything Fun You Could Possibly Do in Aledo, Illinois

Everything Fun You Could Possibly Do in Aledo, Illinois

Motorcycle Man

Penitentia

Penitentia

Eddie Hill

Into the Wake

Into the Wake

Director