Pat Finn, an actor best known for his roles on “Seinfeld” and “The Middle,” has died. Finn passed away Dec. 22, at age 60 of cancer, his family members confirmed in a statement to TODAY.com.

You might know Festivus, the quirky secular holiday, from its feature in the 1997 "Seinfeld" episode, "The Strike." In it, George Costanza, played by Jason Alexander, talks about the ridiculous, anti-Christmas holiday his father, Frank Costanza, made up when he was a kid.