Batman: 10 Best Villains From The 60s TV Series
4. The Riddler
As with every incarnation of the character, this Riddler (usually played by Frank Gorshin, but also once by John Gomez Addams Astin) is a criminal mastermind, psychologically unable to commit a crime without leaving a clue for Batman and Robin to solve which they invariably always do, no matter how odd. Frank Gorshin brings the character wonderfully to life Jim Carrey in Batman Forever obviously being heavily inspired by his hyperactive performance and is arguably still the definitive version of the Prince of Puzzles.
The Riddler is also the very first villain of the series, appearing in the semi-serious opening episode Hi Diddle Riddle in which the loss of Bruce Waynes parents is mentioned and someone actually dies, something that was huge no-no later in the series. You can't say the show didnt develop.