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 be one 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."
3. Frank Gorshin | Commissioner Bele & Riddler
It’s hard to imagine someone other than Frank Gorshin clad in that iconic green costume, and the Riddler is, in part, one of Batman (West) and Robin’s (Ward) most popular villains, thanks to Gorshin's unforgettable performances as the character.
In fact, the King of Conundrums was the first major adversary the Dynamic Duo faced when Batman debuted on ABC in September of 1966. Gorshin is credited with playing Riddler 10 times on the show, and he also appeared as the character in Batman: The Movie (1966).
Fast forward to 1969 where Gorshin made his one and only appearance on Star Trek: The Original Series. He portrayed Commissioner Bele in the TOS season 3 episode “Let That Be Your Last Battlefield.” The episode remains one of the most memorable Star Trek stories, and Gorshin certainly played a large part in why it continues to resonate with fans today.
2. Julie Newmar | Eleen & Catwoman
Julie Newmar is synonymous with the role of Catwoman all around the world, and she first played the iconic character during season 1 of the Batman TV series. However, Newmar’s most prolific work as the Cat came during season 2 of the show, and then Eartha Kitt took up the mantle for season 3. Before the casting change, Newmar was credited with playing the character 13 times.
Newmar was another one-and-done guest star on Star Trek: The Original Series, but she was hardly forgettable. Newmar portrayed Eleen in the TOS season 2 episode, “Friday’s Child.” And Eleen’s hilarious and heartbreaking interactions with Dr. McCoy (DeForest Kelley) are the reason Newmar will always be revered by Trekkies.
1. Yvonne Craig | Marta & Batgirl
Barbara Gordon, aka Batgirl, joined the Batman television series during the show’s third and final season. Yvonne Craig’s Batgirl fought crime alongside Batman (West) and Robin (Ward) in a total of 26 episodes. It's also worth nothing that Barbara was the daughter of Gotham Police Commissioner Gordon (Neil Hamilton).
In 1969, Craig made her only appearance on Star Trek: The Original Series during the season 3 episode, “Whom Gods Destroy.” Sadly, though, Craig’s green-skinned character, Marta, met her explosive fate at the hands of Lord Garth (Steven Ihnat).
Join us all month long as we celebrate nearly 60 years of Star Trek: The Original Series and Adam West's Batman. Everyone knows these four iconic actors, but numerous performers crossed over between the two fan-favorite shows while they were on the air.
Look for a new entry in our Star Trek/Batman crossover content "same Bat-time, same Bat-channel!" Translation: every Tuesday this month, beginning with Star Trek & Batman actors fans forgot starred in both shows which drops on Nov. 11.
For more Star Trek content, visit the Redshirts Always Die Facebook and X pages.
Live long and prosper, Trekkies! And you, too, Batmaniacs!