Jeff Cohen’s rise (and crash) from child stardom happened almost overnight.
Born Jeffrey Bertan McMahon on June 25, 1974, in Los Angeles, he watched his family shift early in life. When he was around seven or eight, his parents separated, a moment that marked him deeply.

Not long after, he chose a new identity for the screen, adopting “Cohen” as his stage surname, a tribute to his mother Elaine’s maiden name.

Before his breakout role in The Goonies, Cohen was already popping up on television. In 1982–83, he appeared as one of the kids who helped explain clues to players on the CBS game show Child’s Play.

A few years later, in the summer of 1985, he returned to TV as a young celebrity guest on the game show Body Language.
While filming the legendary The Goonies, Cohen cemented his place in pop-culture history with the unforgettable Truffle Shuffle, bringing infectious energy to the role of the lovable misfit, Chunk.