Riddles Galore
Frank Gorshin was the Riddler in season one and three and in the 1966 movie, but John Astin played the role of the Riddler in season two. He was an Oscar-nominated actor better known for his role as Gomez Adams in The Addams Family.
Mr. Freezes Through The Seasons
Mr. Freezes, also known as Dr. Schimmel, wasn’t featured very often throughout all three seasons. In season one George Sanders played the role, but in season two and three, the role was played by Eli Wallach and Otto Preminger.