Dwayne 'The Rock' Johnson in 'Star Trek: Voyager'
Through the innumerous worlds and realms of Star Trek, we have seen quite a number of interesting faces. Faces with gills, antennae, pointed ears... and Hollywood Walk of Fame stars. Yes, the many incarnations of Gene Roddenberry's vast universe have included some memorable guest players taking on alien forms, such as wrestler-turned-actor Dwayne "The Rock" Johnson. We know him as the chef of many odorous ring-side meals, but Star Trek: Voyager gave him a role as the Pendari Champion in a Season 6 episode.
Wallace Shawn in 'Star Trek: Deep Space Nine'
It's inconceivable that we'd ever think of Wallace Shawn as anything but a hot-tempered Sicilian or an impatient dinner guest. But here he is, in gallant form as the Grand Nagus of the Ferengi Alliance on Deep Space Nine.
Kim Cattrall in 'Star Trek VI: The Undiscovered Country'
Prior to her forays through Manhattan's elite corners, Kim Cattrall embodied the far more logical Vulcan spirit as Valeris in Star Trek VI: The Undiscovered Country.
Christopher Lloyd in 'Star Trek III: The Search for Spock'
We know him best as a time traveler, but he has also conquered the frontier of space: Christopher Lloyd rose to glory as Klingon Commander in Leonard Nimoy's Star Trek III: The Search for Spock.
Jason Alexander in 'Star Trek: Voyager'
We're wondering if draping oneself in velvet is socially acceptable on other planets... if so, then Seinfeld alum Jason Alexander found his calling as Kurros, an alien of unknown species in Star Trek: Voyager.
Iggy Pop in 'Star Trek: Deep Space Nine'
He was a Passenger... aboard an intergalactic space shuttle. Iggy Pop donned Vortan form in Deep Space Nine, as a paramour on a quest to save a kidnapped member of his species.
James Worthy in 'Star Trek: The Next Generation'
On Earth, James Worthy has earned the esteem of having his name placed in the Naismith Hall of Fame. On other planets, he is of even greater acclaim, serving as a Klingon Koral in Star Trek: The Next Generation.
Kurtwood Smith in 'Star Trek IV: The Undiscovered Country'
In 1977, Kurtwood Smith loomed large over son Eric in the small town of Point Place, Wisconsin. In 2293, he loomed large over Star Trek VI: The Undiscovered Country as the Federation President. Equally as intimidating as his That '70s Show role.
Kirsten Dunst in 'Star Trek: The Next Generation'
Long before Spider-Man and Bring It On, Kirsten Dunst played a young Cairn named Hedril in an episode of Next Generation. Even back then, she could sell a scene like nobody's business.
Mick Fleetwood in 'Star Trek: The Next Generation'
Don't you recognize him? It's Mick Fleetwood...of Fleetwood Mac! Yes, he looks a bit... different as The Next Generation's Antedean dignitary, but he has the pipes to prove himself.