Lovok

From Memory Alpha, the free Star Trek reference.

For the Changeling who impersonated this individual, see Lovok (Changeling).

Colonel Lovok was an influential member of the Romulan Tal Shiar, who was replaced by a Founder prior to the Battle of the Omarion Nebula in 2371. (DS9: "The Die is Cast")

The changeling impersonating Lovok was played by actor Leland Orser.