#6: Chuck Cunningham Disappeared When Fonzie Became the Real Big Brother
In the early days of Happy Days, the Cunningham family actually had three kids. Alongside Richie and Joanie was their older brother, Chuck. He even had storylines, including heading off to college on a basketball scholarship. Then… he quietly vanished from the show without much explanation.

According to Garry Marshall, the reason was simple. The writers realized the show already had the “big brother” it truly needed — and it wasn’t Chuck. It was Fonzie. With his guidance, advice, and unexpected heart, the Fonz naturally filled that role, making Chuck’s presence feel unnecessary.
