Fans of Star Trek: The Original Series know these Batman crossover actors very well. While they were all one-hit wonders on TOS, each played a significant foil to Adam West's Caped Crusader and Burt Ward's Robin the Boy Wonder.
Since both Star Trek (1966-1969) and Batman (1966-1968) are celebrating their 60th anniversaries in 2026, it seemed only right to acknowledge these crossover performers. Given that these actors are all so beloved by each fandom, this list will rank them only by the number of times they portrayed their iconic Batman characters. Whatever number they might be on this list, they're all number one in our hearts.
4. Lee Meriwether | Losira & Catwoman
While Lee Meriwether never appeared on the Batman television series as Catwoman, she was the actress tasked with portraying the famed villain in Batman: The Movie (1966), which also celebrates its 60th anniversary next year. On the TV show, the Cat was played by Julie Newmar and later Eartha Kitt, but it was Meriwether who completed the group of villains teaming up against the Dynamic Duo for the film. However, Meriwether ranks last on our list because she only played Catwoman once.
Meriwether appeared alongside Cesar Romero’s Joker, Frank Gorshin’s Riddler, and Burgess Meredith’s Penguin as the fearsome foursome matched wits with Batman (Adam West) and Robin (Burt Ward). Meanwhile, Meriwether made her only appearance on Star Trek: The Original Series during the show’s third and final season. The actress portrayed Losira in “That Which Survives.”
Fun fact: Meriwether does appear in the Batman TV show but as another character (Lisa Carson). While she's not Catwoman, fans can watch Meriwether in the season 2 episodes "King Tut's Coup" and "Batman's Waterloo."