Christopher Eugene O'Donnell (born June 26, 1970) is an American actor who performs in film and television.

Others include Chris Reece in School Ties, D'Artagnan in The Three Musketeers, Jack Foley in the drama film Circle of Friends, Dick Grayson/Robin in Batman Forever and Batman & Robin, Jason Brown in Robert Altman's Cookie's Fortune, Peter Garrett in Vertical Limit, and Wardell Pomeroy in Kinsey.

[10][9] O'Donnell had already appeared in numerous commercials as a teenager, advertising Cap'n Crunch cereal and Fruit Roll-Ups snacks.

In the early 1990s, he appeared in several films including Men Don't Leave (1990), starring Jessica Lange; Fried Green Tomatoes (1991), appearing again with Kathy Bates from Men Don't Leave; School Ties (1992); and Scent of a Woman (1992) with Al Pacino.

[13] The subsequent films Cookie's Fortune (1999) and The Bachelor (1999) were moderately successful, while Vertical Limit (2000) was a box office hit.

He was subsequently cast as veterinarian Finn Dandridge on the ABC medical drama Grey's Anatomy.

O'Donnell featured prominently in the TNT miniseries The Company as CIA case officer Jack McAuliffe, a character who progressed from spoonfed Yale elitist to jaded, post-Cold War cynic.

O'Donnell married Caroline Fentress in April 1997 at St. Patrick Church in Washington, D.C.[16] They have five children together.