Top 10 Celebrities You Didn't Know Were on Star Trek TV Shows

“Star Trek: The Next Generation” (1987-94)
Though she’s better known for starring alongside Patrick Stewart in the “X-Men” series, that wasn’t the first time they shared screen time. In “The Perfect Mate,” Janssen plays Kamala, an alien who can make herself the perfect partner for any man. Naturally, this causes trouble as she woos the enterprise crew. Worse yet, she’s betrothed to someone who sees her only as a diplomatic tool. Picard is left torn between his duty, his humanity, and his feelings for her. Kamala carries the bittersweet emotion of the situation powerfully as she's married off, but assures Picard she’ll always be his.

“Star Trek: Voyager” (1995-2001)
In the two-parter “Future’s End,” Silverman plays researcher Rain Robinson who accidentally finds the USS Voyager after it – and another man bent on its destruction – are sent back in time. Thanks to her wit and humor, she's quick to see through the crew's attempt to go unnoticed and joins forces with them, even calling Tuvok a freakasaurus along the way. Her geeky ways even manage to catch the attention of Tom Paris, who briefly kisses her before returning to the future, showing that brains are sexy in any century.

“Star Trek: Voyager” (1995-2001)
While best known as comedic fool George Costanza, here Alexander plays Kurros, a shockingly straight character, who acts as a spokesperson for problem-solving aliens. After trying to convince the crew to solve a bounty hunter problem in return for Seven of Nine, his malicious plan is discovered, and the crew eventually turns his plan back on him. Alexander was actually thrilled to play an alien on a “Star Trek” show after repeated offers to come on as a human.

“Star Trek: The Next Generation” (1987-94)
If you need someone to carry the command, intelligence, and tragedy that comes with an ill-fated crew, who better than a king of class? Grammer plays Captain Bateson of the doomed USS Bozeman, which gets flung years into the future and caught in a time-loop, crashing with the Enterprise for all eternity. Grammer portrays the captain with his signature gravitas, showing strength of leadership and pain at learning his fate. Luckily, Picard and company help free the Bozeman from the loop, but sadly can't help Bateson and his crew back to 2278.

“Star Trek: Enterprise” (2001-05)
The first time MacFarlane was on “Star Trek,” you may not have noticed him. He worked on the Enterprise as an engineer, fixing it after a near-fatal battle – all while getting reprimanded by his boss. In the season 4 episode “Affliction,” he finally got a name: Stewart Rivers. MacFarlane delivers a surprisingly reserved performance, working on the Columbia ship to adjust its field matrix. After his stint on the show, MacFarlane returned the favor to several “Star Trek” cast members, having them make cameos on “Family Guy.”

“Star Trek: Voyager” (1995-2001)
When you go from the world of wrestling to a new world entirely, sometimes it's best to stick with what you know. Dwayne Johnson came swinging as the Pendari champion in the futuristic sport of Tsunkatse, fighting Seven of Nine in the ring. The Rock was truly an impressive sight, using his famous “Rock Bottom” move, and even performing all his own stunts for the episode. With his acting career taking off down the line, his brief stint on “Star Trek” was one his earliest big breaks to help him transition out of wrestling.

“Star Trek: Deep Space Nine” (1993-99)
Creative types can be endless wells of talent. Boarding Deep Space Nine, Pop plays Yelgrun, who comes to negotiate the exchange of a Vorta criminal in return for a very important Ferengi woman. Pop delivers a layered performance, switching from welcoming to violently impatient at the drop of a hat. Producer Ira Steven Behr was a huge fan of Pop's, though he had regretted casting him in such a subdued role compared to his performance persona. It's hard to deny the strength Pop brought to the character, though.

“Star Trek: Voyager” (1995-2001)
Being royalty has a few perks, especially if you're a Trekkie. The King of Jordan appeared very briefly in the episode “Investigations” as a science officer interacting with Harry Kim. Initially, he had gone to take pictures on set while he was in L.A., but then was asked if he’d like to be in a scene. He even offered cast members Ethan Phillips and Robert Picardo to visit Jordan. To boot, he’s invested in the Red Sea Astrarium, a “Star Trek” theme park set to open in the Jordan city of Aqaba.

“Star Trek: The Next Generation” (1987-94)
In a holodeck poker game, Data decides to play the greatest minds in science, Isaac Newton, Albert Einstein and Stephen Hawking just to see what would happen. We certainly didn’t expect Hawking to be such a card shark. The sarcastic banter between these geniuses is nothing short of hilarious, especially the dig about Newton’s apple story. In the end, Hawking plays the winning hand, taking Einstein for all he's worth, and visibly having a ball in the process.


Before we get to our top pick, here are a few honorable mentions:

Tom Morello
“Star Trek: Voyager” (1995-2001)

Joan Collins
“Star Trek: The Original Series” (1966-69)


Mae Jemison
“Star Trek: The Next Generation” (1987-94)

“Star Trek: The Next Generation” (1987-94)
The right guest might disappear into a role so much that you wouldn't recognize them, but layers of makeup don't hurt either. When rock legend Mick Fleetwood stepped onto the Enterprise, you might not have even realized he was there. Fleetwood played an Antedean dignitary, part of a delegation on their way to a conference, with barrels of food in tow. Fleetwood was such a massive fan of the show that he even agreed to shave his beard; all he wanted was to be beamed onto the Enterprise.