Diego Klattenhoff

Diego Klattenhoff / Mike Callahan

Diego Klattenhoff plays Mike Callahan on "Mercy." Klattenhoff was born outside of New Glasgow in Nova Scotia and moved to Toronto to pursue acting at the age of 19. He studied in theatre workshops for a number of years, while bussing tables, bartending, and adapting to life in Toronto.

Klattenhoff studied with some of Canada's most respected acting coaches, including David Rotenberg, Bruce Clayton and Rae Ellen Bodie, and eventually his dedication and persistence paid off. His first big break was in "Mean Girls," starring Lindsey Lohan and Rachel McAdams. Mark Waters directed this cult favorite.

Additional credits include guest starring roles on numerous films, movies of the week, and television series such as "Smallville," "Psych," and "Supernatural," as well as recurring roles on "Men in Trees" and "24." Klattenhoff also appeared as a series regular on Canada's CTV's "Whistler" and starred in JJ Abrams' pilot, "Hope Against Hope."

Before acting, Klattenhoff's dream was to become a professional baseball player. When time permits, he still loves to play on the diamond as well as indulge in golf, football, hockey and swimming.

Klattenhoff divides his time between Toronto, Vancouver, and his new home in Los Angeles.

Most Recent

That Crazy Bitch Was Right

Veronica finds herself in the right place at the right time to help two boys trapped in an abandoned building
Watch Until 09/17/13

Too Much Attitude and Not Enough Underwear

Sands and Veronica are suddenly faced with a life-changing decision; intimidated by a stalker's threats, Sonia turns to a surprising source for help.
Watch Until 09/17/13

We All Saw This Coming

When injured prisoners invade Mercy's halls, Veronica learns her patient's dark secret while Sonia and Briggs come to terms with making a life or death decision.
Watch Until 09/17/13

There Is No Superwoman

Veronica continues her therapy sessions; Chloe tracks down an ER patient with potentially fatal blood test results.
Watch Until 09/17/13

Of Course I'm Not

PTSD therapy brings Veronica to a pivotal point in her relationship with Chris.
Watch Until 09/17/13

Recaps

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