Prolific American character actor who played seven Star Trek roles across four series and a film, most notably Kira Taban, the father of Kira Nerys, in Deep Space Nine.
Thomas Kopache is an American actor seen in a long list of films and series, including No Country for Old Men and a recurring part as Assistant Secretary of State Bob Slattery in The West Wing.
He first appeared in The Next Generation as the Romulan scientist Mirok in The Next Phase and as the holographic train engineer in Emergence, then as the Enterprise-B communications officer in Star Trek Generations. In Voyager he played Viorsa, one of the sleepers trapped in The Thaw.
In Deep Space Nine he was Kira Taban in Ties of Blood and Water and Wrongs Darker Than Death or Night. Enterprise used him twice: as the Vulcan aide Tos in Broken Bow and as the dying alien test subject from the Sphere-Builders' realm in Harbinger.