“Come along and sing a song / And join the jamboree! / M-I-C-K-E-Y M-O-U-S-E!” Between 1955 and 1959, a group of teens joined Disney’s famous mouse on ABC’s The Mickey Mouse Club, making their first public appearance on July 17, 1955, at the opening day of Disneyland.

Of the dozens of young performers who appeared on the variety show, the “Red Team” comprised the most popular. Many members of the 1955 season’s Red Team are still alive; many others are no longer with us. Get updates on them all below.