India, Aug. 2 -- Happy Days star Henry Winkler recently looked back on his time on the beloved sitcom, recalling an actor he claimed let fame get to his head. While speaking at Fanboy Expo Knoxville in July, the actor, best known for playing Arthur "Fonzie" Fonzarelli, shared that there was "no stardom" on the show's set, except for one recurring guest star who repeatedly boasted about his fan mail.

Although Winkler did not reveal the actor's name, he did identify the character, saying the guest star played Eugene.

Who Played Eugene On Happy Days?

The character Eugene Belvin was played by Denis Mandel, who appeared in 10 episodes of Happy Days during Seasons 8 and 9 between 1980 and 1982.

Eugene was introduced as a shy, nerdy student ...