'Seinfeld,' 'Twin Peaks' Actor Warren Frost Dead at 91

A familiar face from "Seinfeld" has died — THR reports the death of Warren Frost, who played the cantankerous almost-father-in-law of George Costanza (Jason Alexander), at age 91.

Frost died at his Middlebury, Vermont, home following a long illness, according to his son, Mark Frost, co-creator of "Twin Peaks."

In a statement, Mark Frost said, "We're saddened today to announce the passing of our dear old dad, Warren Frost. From the Normandy shores on D-Day to his 50-year career onstage and screen, he remained the same humble guy from Vermont who taught us that a life devoted to telling the right kind of truths can make a real difference in the lives of others. We're grateful to have shared him with the world for as long as we did."

On "Seinfeld," it was famously revealed that Frost's Mr. Ross had had a torrid affair with the writer John Cheever, gossip revealed only after Kramer (Michael Richards) burned down Ross's cherished family cabin.

Along with this stint on that iconic series, Frost, described by THR as a "late-blooming actor," made a big impression as Doc Hayward on his son's show "Twin Peaks" and as a sidekick on Andy Griffith's popular legal series "Matlock."