Then id go with Leigh Hudec as the characters name...Or perhaps the pseudonym she used for the role, "Grace Hudec".
She didn't use a pseudonym as Number One. She was billed as "M. Leigh Hudec," which was her real name, the M. standing for Majel. If anything, "Barrett" is the pseudonym.
{ProfJonathan}
(insert evil, black hat laughter here with a good amount of mustache twirling)