Thomas Philip O'Neill

The talent

Thomas Philip O'Neill

Acting

IMDB ↗

Role Type Sort Decade Genre

The work

Law & Order: Special Victims Unit

1999

Law & Order: Special Victims Unit Rick Donnelly

Black Mass

Black Mass FBI Wire Tech

MINDHUNTER

2017

MINDHUNTER Leo Buchanan

FBI

2018

FBI Neil Mosbach

Law & Order

1990

Law & Order Dr. Neil Mosbach

NCIS: New Orleans

2014

NCIS: New Orleans Eddie Oberman

CIA

2026

CIA Dr. Neil Mosbach

Mapplethorpe

Mapplethorpe David Croland

The Mix

The Mix Sean Palermo

Writer's Block

Writer's Block Matthew

The School Duel

The School Duel Pastor Mark

Endless Sea

Like Mother Like

Like Mother Like