Lawrence Pressman

Actor (Tekeny Ghemor) — Deep Space Nine

American actor, born 1939, who played the Cardassian dissident Legate Tekeny Ghemor in two Deep Space Nine episodes and the Changeling posing as Ambassador Krajensky in The Adversary.

Lawrence Pressman is an American stage, film and television actor whose career began in the 1960s. Television audiences know him best as Dr Benjamin Canfield in Doogie Howser, M.D., and his films include The Hellstrom Chronicle, Shaft and American Pie.
He played three parts in Deep Space Nine. As Legate Tekeny Ghemor he appears in Second Skin, in which the Obsidian Order tries to persuade Kira that she is Ghemor's lost daughter, and in Ties of Blood and Water, where the dying Ghemor comes to the station to pass on his secrets to her.
Between those episodes Pressman played Ambassador Krajensky in the third-season finale The Adversary; the ambassador is revealed to be a Changeling infiltrator who sabotages the Defiant.