For the first few shows, Sonny was George's assistant, but he was soon relegated to an occasional character.

The only black people you found were occasional characters or characters who were so feeble-witted that they couldn't manage anything, anyway.

Hamilton likes to carry an occasional character from one story to the next.

After appearing as an occasional character for several years, she became a permanent member of the core cast in 1985.

Current events are mirrored through the original characters, their offspring (the "second generation"), and occasional new characters.

An occasional character who later had an eponymous spin-off show.

Chad is an occasional character and rarely appears, typically showing up during the holiday seasons and leaving abruptly.

Other ships, of all sizes, provide a large number of regular and occasional characters along with a few talking structures.

He also appears as the voice of Alex, an occasional character on Handy Manny).

From series 10, his role was reduced to an occasional character, with his final appearance in the show's final episode.