Number One is a fictional character in the science-fiction franchise
Star Trek. She first appeared in "The Cage", the initial 1965 pilot
episode of the original series, as the unnamed, intellectual
second-in-command to Captain Christopher Pike of the starship
Enterprise. Number One performs the same role for Pike "as Spock later
does for Kirk". The character was first portrayed by Majel Barrett,
who went on to play several unrelated roles in the franchise. The
pilot was rejected, with most of its characters, including Number One,
being omitted from the second pilot and the subsequent series;
however, footage from "The Cage" featuring the character was
repurposed for inclusion in the two-part story "The Menagerie" in
1966.In 2019, Number One (played by Rebecca Romijn) appeared in the
second season of Star Trek: Discovery, which revealed her name to be
Una.The character debuted in "The Menagerie" in 1966, and also in "The
Cage", which was not broadcast until 1988. The character was not seen
in live-action[clarification needed] Star Trek again until 2019, when
she was made a recurring character in second season of the CBS All
Access web series Star Trek: Discovery.Although not shown on-screen,
it is implied that Number One briefly takes command of the Enterprise
when Captain Pike and his landing party first beam down to Talos IV.
She later beams down to the planet several times herself. During "The
Cage," Number One proves to her alien captors that humans would rather
die than be slaves. Number One (Star Trek) Biography, NetWorth, Height, Age, Weight, Family, Married, Son, Daughter