Number One

Number One was a character introduced in the Star Trek pilot episode The Cage.

She was portrayed by Majel Barrett, who would go on to play Christine Chapel, Lwxana Troi, and Lady Morella.

A human female, Number One was born on the colony world of Illyria in the early 23rd century. In the 2240s she attended the Federation Starfleet Academy and graduated by the mid 2240s.

After serving on several vessels, she was assigned as executive officer of the Yorktown under Captain Christopher Pike. When Pike was given command of the Enterprise, Number One went with him to be executive officer on that ship.

During the mission to Talos IV she worked to free Pike from Talosian captivity. When the Talosians attempted to force Pike to chose between her, Vina, or Yeoman Colt, she set her phaser to overload, deciding it was better to die than remain a human captive. However more Talosians arrived and Pike had her stop the overload from happening. The Talosians had assimilated the history of the human race, and released their captives after seeing how much humans hated captivity.

Number One continued to serve on the Enterprise until Captain Pike was promoted to Fleet Captain in 2264. She decided to remain on the Enterprise as first officer under Captain James T. Kirk, but an accident in the cargo bay seriously injured her, and Number One couldn't stay on as first officer due to the extended recovery time she required.

After leaving the Enterprise, Number One was promoted to command the Yorktown. In the 2270s she was promoted to Admiral.