American actor, born in 1952 and an Emmy winner as John Locke in Lost, who played Riker's former captain Admiral Erik Pressman in the seventh-season episode The Pegasus.
Terry O'Quinn is an American actor, born in 1952, who starred in the 1987 thriller The Stepfather, appeared in Millennium and Alias, and won an Emmy Award as John Locke in Lost.
In Star Trek: The Next Generation he guest stars in the seventh-season episode The Pegasus, first shown in 1994. He plays Rear Admiral Erik Pressman, Riker's first commanding officer, who comes aboard the Enterprise to recover the lost USS Pegasus before the Romulans find it. Pressman orders Riker to keep silent about what the ship carried: an illegal phasing cloaking device, tested in breach of the Treaty of Algeron, which had provoked a mutiny.
The events of the episode were revisited in the Enterprise finale These Are the Voyages.