Becky Wahlstrom

Actor (the cogenitor) — Enterprise

American actress who played the Vissian cogenitor, the nameless member of a third sex whom Tucker teaches to read, in the second-season Star Trek: Enterprise episode Cogenitor.

Becky Wahlstrom is an American actress who took the title role in Cogenitor, one of the most discussed episodes of Star Trek: Enterprise.
She plays a member of the Vissians' third sex, a small minority needed for reproduction who are assigned to couples, given no names and no education. Tucker, troubled by how the cogenitor travelling with a Vissian engineer and his wife is treated, secretly teaches it to read and shows it films and games.
The cogenitor proves as capable as any Vissian, takes the name Charles and asks Archer for asylum. The captain refuses, and it later takes its own life, leaving Tucker to face what his well-meant interference has caused.