William Schallert

Actor (Nilz Baris, Varani) — The Original Series

American character actor (1922–2016) who played the fussy Federation official Nilz Baris in The Trouble with Tribbles and the Bajoran musician Varani in Deep Space Nine's Sanctuary.

William Schallert was an American character actor, born in 1922, with hundreds of screen credits. He was the father in The Patty Duke Show and served as president of the Screen Actors Guild from 1979 to 1981.
In the original Star Trek he plays Nilz Baris, the Federation undersecretary in the second-season episode The Trouble with Tribbles, who demands that Kirk guard the grain meant for Sherman's Planet and never forgives him for taking the matter lightly.
He returned to the franchise in 1993 in the Deep Space Nine episode Sanctuary, as Varani, a Bajoran musician whom Kira finds work for in Quark's bar. Schallert died in 2016.