Dan O'Brien

Biography

Dan O'Brien is an actor, known for Whitney (2011), Grand Theft Auto IV (2008) and The Delray Story (2011). He graduated from the University of Notre Dame in 1999.

Known For

Grey's Anatomy

2005•TV Series•

8.2

Law & Order

1990•TV Series•

7.3

How I Met Your Mother

2005•TV Series•

8.1

American Housewife

2016•TV Series•

7.7

The Affair

2014•TV Series•

6.7

Whitney

2011•TV Series•

5.2

Gunslingers

2025•Movie•

6.2

Descendent

2025•Movie•

5.8

Filmography