Rob Reiner had appeared in season 1 episode 8 and 13 as other characters.
Paul Smith, who played the director, went on to play Ron Harvey, assistant editor of Today's World magazine, on the TV series "The Doris Day Show".
Ann is trying out for a commercial for a soft drink called Twinkie; the Hostess Twinkie snack cake was invented in 1930, so it's surprising that they weren't sued for using a trademarked name.