Last year I saw a production of George Bernard Shaw's Pygmalion at Minneapolis Minnesota's Guthrie Theatre. In it, the actor playing Dan (the high talker; Brian Reddy) in this episode played the role of Eliza Doolittle's father. One of the lead roles in the play, the pompous Professor Henry Higgins, was played by the actor playing the also pompous Simon, Elaine's boyfriend, a few episodes ahead.