We remember Jerry Stiller played Frank Costanza Seinfeld Sitcom was a beloved actor and comedian whose career spanned over six decades, leaving an indelible mark on both television and film through his explosive energy, impeccable timing, and unforgettable characters. Serenity now!” — Frank’s infamous attempt at stress management that backfires spectacularly. Festivus — the bizarre holiday he invented as an alternative to Christmas, complete with the “Airing of Grievances” and the “Feats of Stre