Ron Howard's brother Clint was just 2 years old when he made his first appearance on "The Andy Griffith Show" as Boy at Church Social in Season 2, Episode 17 ("The Jinx"). His blink-and-you'll-miss-it appearance didn't win him any Emmys, but he did earn a character name, Leon, for his next four appearances on the show. In each brief scene, the youngster offers no lines and simply appears covered in peanut butter and jelly from a sandwich he clutches in his grubby little fingers.

Clint Howard got his first major role at 4 years old in the short-lived 1964 sitcom "The Baileys of Balboa" and his first-star turn as Mark Wedloe in 1967's "Gentle Ben." He went on to enjoy a long and steady career as a character actor, racking up a staggering 253 acting credits. He has appeared in such iconic franchises as Star Wars ("Solo: A Star Wars Story"), Star Trek (4 different shows), and Austin Powers (all three films).

Unsurprisingly, the Howard brothers have worked together on several film and television projects — including two episodes of "Happy Days" — and even teamed up for a memoir about their childhood called "The Boys." In 2021, Clint told Entertainment Weekly that his supportive family was a big part of his success. In fact, he credited his and his brother's careers to their parents' "unique way of operating." 

Clint also sought to dispel any rumors of jealousy in the family, saying, "I'm so grateful to be their son, and I just have a tremendous amount of gratitude being Ron's little brother. It's such a beautiful cool place to be, to be Ron Howard's brother ... People think that there's envy or there's conflict, and there really isn't."