
Acting
Michael Leonard Ontkean (born January 24, 1946) is a Canadian retired actor. Born and raised in Vancouver, British Columbia, Ontkean relocated to the United States to attend the University of New Hampshire on a hockey scholarship before pursuing a career in acting in the early 1970s.
He initially came to prominence portraying Officer Willie Gillis on the crime drama series The Rookies from 1972 to 1974, followed by lead roles in the hockey sports comedy film Slap Shot (1977) and the romantic comedy Willie & Phil (1980). In 1982, he had a starring role opposite Harry Hamlin and Kate Jackson in…

Twin Peaks: The Missing Pieces
as Sheriff Harry S. Truman

The Descendants
as Cousin Milo

Mrs. Ashboro's Cat
as Wes Merritt

A Killing Spring
as Tom Keaton

Green Sails
as John Scott

Bear with Me
as Greg Bradley

Just a Little Harmless Sex
as Jeff

Nico the Unicorn
as Tom Gentry

A Chance of Snow
as Matthew 'Matt' Parker

Summer of the Monkeys
as John Lee

North Shore
1 ep.

Psi Factor: Chronicles of the Paranormal
1 ep.

The Outer Limits
as Dr. Field · 1 ep.

Family Album
as Ward Thayer · 2 ep.

In a Child's Name
as Kenneth Taylor · 2 ep.

Twin Peaks
as Harry S. Truman · 48 ep.

The Hitchhiker
as Gordon Brooks · 1 ep.

Tales of the Unexpected
as Tommy · 1 ep.

The Rookies
as Willie Gillis · 46 ep.

Great Performances
as Lucius Harney · 1 ep.
Twin Peaks: The Missing Pieces
2014