Several stars from Voyager's cast first appeared on other Star Trek properties. Indeed, it is not at all uncommon for Star Trek actors to appear as guest stars before becoming permanent cast members. For example, Colm Meaney first appeared in the TNG pilot, "Encounter at Farpoint" as an unnamed bridge officer, before becoming Chief Miles Edward O'Brien. And Jeffrey Combs has famously played more Star Trek characters than any other actor. It should come as no surprise, then, that three Voyager stars have dopplegangers hidden throughout the rest of Star Trek.
3 Lt. Commander Tuvok Has Clones Across Time And Space
Tim Russ Appears In Star Trek: Generations And TNG
Undeniably, Tim Russ's most famous role is that of the stern Vulcan chief of security on Voyager, Lt. Commander Tuvok. Tuvok is undeniably one of the most iconic characters in Star Trek: Voyager, with his close friendships with Captain Janeway and Seven of Nine (Jeri Ryan), and all the wisdom he has gained over more than a century of life. Tuvok served under Captain Hikaru Sulu as a young man, taught at Starfleet Academy, and was vital to Voyager's survival in the Delta Quadrant. But Tuvok was not the only role Tim Russ has ever played on Star Trek.
Tim Russ made his first Star Trek appearance as a human mercenary named Devor in the TNG episode "Starship Mine." In this case, he appeared human and was killed during a Baryon Sweep of the USS Enterprise. Russ then appeared as an unnamed Lieutenant on the bridge of the USS Enterprise-B in Star Trek: Generations. Since Generations was set in 2293, and Tuvok probably served under Captain Sulu during the events of Star Trek VI, these two nearly identical Starfleet lieutenants served on the bridges of two of the most prominent starships of the late 23rd century.
Tim Russ has appeared in several other Star Trek shows as well, although these appearances did not translate to additional identical Starfleet officers. Russ played the Klingon mercenary T'Kar in the Deep Space Nine episode "Invasive Procedures," but the Klingon forehead ridges keep him from looking too much like Tuvok. Also on DS9, Tim Russ appeared as the Mirror Universe version of Tuvok in "Through the Looking Glass." So, although he will always be best known as Tuvok, Tim Russ has played his fair share of Star Trek characters.
2 Lt. Tom Paris Has An Evil Twin
And Lower Decks Knows It
In Star Trek: Voyager season 1, Tom Paris (Robert Duncan McNeill) was the undeniable bad boy of the ship. Captain Janeway pulled him out of a literal prison camp to serve as Voyager's pilot for a single mission where his flight expertise was required, and only getting stranded in Delta Quadrant turned his life around. But Robert Duncan McNeill played more than one Star Trek bad boy, and his role as Tom Paris was originally envisioned as a continuation of his earlier story as Cadet Nicholas Locarno.
Nicholas Locarno was the ringleader of a group of disgraced Starfleet cadets, who engaged in dangerous flight maneuvers leading to the death of another cadet, and lied to cover it up. And the fact that Nicholas Locarno and Tom Paris were physically indistinguishable was directly acknowledged by Star Trek: Lower Decks. In Lower Decks season 4, Locarno returned as an antagonist, and his resemblance to the roguish Lt. Paris was mined for jokes constantly. At least in this case, it is clear that the resemblance between McNiell's two characters is more than just coincidental; it is narrative.
1 There Are Multiple Emergency Medical Holograms
And Dr. Louis Zimmerman Was On DS9
Nearly 700 Emergency Medical Holograms were created by Dr. Zimmerman...
But there’s more than one identical copy of the Doctor in Star Trek. Nearly 700 Emergency Medical Holograms were created by Dr. Zimmerman, and they all not only look like the Doctor, but also share his core personality. One such EMH is visible in Star Trek: First Contact, assisting Dr. Beverly Crusher (Gates McFaddon) in the Enterprise's Sickbay. Now, Star Trek: Starfleet Academy promises to bring back Robert Picardo as the Doctor. It is yet to be seen whether this iteration of the EMH will be the same Doctor as seen on Star Trek: Voyager, or yet another identical copy.
