Miles O’Brien, a character from the Star Trek universe, lost his left arm in an accident. The incident occurred in the Star Trek: Deep Space Nine episode “The Siege of AR-558,” where his arm was critically injured by a Dominion weapon. However, in the real world, the actor Colm Meaney, who played O’Brien, did not lose his arm; it was a storyline developed for the character within the show.
In the context of the show, the character’s arm was later replaced with a biosynthetic prosthetic. This event was significant for O’Brien’s character development, as it added depth to his experiences and the psychological impact of the war with the Dominion. The prosthetic arm was depicted as highly functional, allowing O’Brien to continue his duties as the Chief of Operations on the space station Deep Space Nine. The loss and subsequent adaptation to a prosthetic limb were used to explore themes of injury, recovery, and the resilience of the human spirit in the face of adversity.