<Li> Rita Wilson (actress and wife of Tom Hanks) began her career with a guest appearance in "Greg's Triangle" (season four) where she played one of the candidates running against Marcia for head cheerleader . </Li> <Li> Paul Winchell (ventriloquist and actor; Winchell - Mahoney Time, voice of "Tigger" in Winnie - the - Pooh) appears as Skip Farnum, the TV commercial director in "And Now a Word From Our Sponsor" (season three). </Li> <P> The theme song, penned by Schwartz and Frank De Vol, and originally arranged, sung, and performed by Paul Parrish, Lois Fletcher, and John Beland under the name the Peppermint Trolley Company, quickly communicated to audiences that the Bradys were a blended family . The Brady family is shown in a tic - tac - toe board with Carol on the top center, Alice in the middle block, and Mike on bottom middle . To the right are three blocks with the boys from the oldest on top to the youngest . To the left are three blocks with the girls from the oldest to the youngest . In season two, the Brady kids took over singing the theme song . In season three, the boys sing the first verse, girls sing the second verse, and all sing together for the third and last verse . The sequence was created and filmed by Howard A. Anderson, Jr., a visual effects pioneer who worked on the title sequences for many popular television series . </P> <P> The end credits feature an instrumental version of the theme song's third verse . In season one, it was recorded by the Peppermint Trolley Company . From season two on, the theme was recorded in - house by Paramount musicians . </P>

Who sang the theme song for the brady bunch