Thomas Philip O'Neill

Thomas Philip O'Neill

Filmography

Law & Order: Special Victims Unit
Law & Order: Special Victims Unit
1999 Β· TV
as Rick Donnelly
Law & Order
Law & Order
1990 Β· TV
as Dr. Neil Mosbach
FBI
FBI
2018 Β· TV
as Neil Mosbach
FBI
FBI
2018 Β· TV
as Dr. Neil Mosbach
MINDHUNTER
MINDHUNTER
2017 Β· TV
as Leo Buchanan
NCIS: New Orleans
NCIS: New Orleans
2014 Β· TV
as Eddie Oberman
CIA
CIA
2026 Β· TV
as Dr. Neil Mosbach
Black Mass
Black Mass
2015 Β· Movie
as FBI Wire Tech
Mapplethorpe
Mapplethorpe
2019 Β· Movie
as David Croland
The School Duel
The School Duel
2024 Β· Movie
as Pastor Mark
Endless Sea
Endless Sea
2022 Β· Movie
Writer's Block
Writer's Block
2025 Β· Movie
as Matthew
The Mix
The Mix
2026 Β· Movie
as Sean Palermo