But it was Stiller’s cantankerous and ever-shouting Frank Costanza on “Seinfeld” that ... he would say it while screaming: “Serenity now!” The social-media outpouring of love for Stiller ...

Favreau played Eric the Clown on the season five episode, “The Fire,” which aired in May 1994. Basically, Eric is appearing at a kid’s birthday party that George Costanza is attending.

But it was Stiller’s cantankerous and ever-shouting Frank Costanza on “Seinfeld” that ... he would say it while screaming: “Serenity now!” The social-media outpouring of love for Stiller ...