Sally Struthers plays the mother of Mark Addy in this series. In The Flintstones in Viva Rock Vegas (2000) he played Fred Flintstone, and in The Pebbles and Bamm-Bamm Show (1971) she provided the voice of Pebbles Flinstone, Fred's daughter. Thus, Mark previously played a character that was the father of a character previously played by Sally.