Trivia

In addition to his skills as an actor, he is also an accomplished writer. His work includes twelve "One Day at a Time" scripts he wrote for the series.

Has a Masters Degree in Political Philosophy.

Pro wrestler The Honky Tonk Man based his gimmick on the character (Dwayne Schneider) that Harrington played on One Day at a Time (1975).

After the Korean War, where he served in the Air Force as an Intelligence Officer and achieved the rank of First Lieutenant, he went to work at NBC in New York.

Has four children and three grandchildren

Received his B.A. and M.A. from New York's Fordham University.

Earned a Bachelor of Arts degree from Fordham University (New York City, USA) in 1950.

He worked with his son, Michael Harrington, in the Who's the Boss? (1984) episode, Guess Who's Coming Forever? (1985).

Father, with ex-wife Marjorie Ann Gortner, of 4 children: his son, D. Patrick Harrington, is an advertising executive living in Tucson; second son, Michael Harrington, is an actor; Terry Harrington is a pianist and composer; daughter Tresa Harrington (aka Tresa-Caitlin Harrington) was a ballerina, whose credits include New York's Joffrey Ballet.

Friends with Greg Mullavey and his wife, Meredith MacRae.

For Pat Harrington Jr. the character of "Dwayne F. Schneider" refused to die, as he reprised the role in a series of TV spots for Trak Auto parts in the late 80's (LONG after One Day at a Time (1975) was canceled).

Friends with Chuck Barris.

When Pat was on Tattletales (1974) with his wife Marjorie, he stated that he had a pilot's license and flew small planes.

Died on his "One Day at a Time" co-star Bonnie Franklin's birthday: January 6.

Biography in: "Who's Who in Comedy" by Ronald L. Smith, pg. 207-208. New York: Facts on File, 1992. ISBN 0816023387

Was supposed to star in a backdoor pilot for the spin-off of One Day at a Time (1975), which featured his own character, after the show's cancellation, when CBS had already declined.

Son of Pat Harrington Sr.

Harrington's cremated remains were given to his surviving relatives.