The name Big Blue Marble referred to planet Earth as “The Big Blue Marble in the sky. Each episode included stories about children around the world and a pen-pal club that encouraged intercultural communication and it featured a segment about the real life of a boy and a girl, one American, the other foreign. The show also had occasional stories about world ecology. In addition there was a weekly segment in which a singing globe “Bluey” invited viewers to write letters to the show, often requests for pen pals. The address to send the letters was in Santa Barbara, California. The character was voiced by executive producer Robert Wiemer. Some children featured on the show who went on to high-profile careers include Tisha Campbell (actress/singer), France Joli (Canadian disco singer) and Kevin Clash (prominent Muppet performer of Elmo on Sesame Street). Before they were well known, actors Sarah Jessica Parker and Kelly Reno were featured in dramatic segments in the series.