If Gene Roddenberry had wanted to keep the Number One character and recasted the role; I can think of the of the ideal candidate for the role
iane Muldaur. Her performance in Return to Tomorrow really has the qualites I see is necessary to bring to the character. She has an air of authority and gravitas that is a right fit. Also, Number One and Ann Mulhall(the character Muldaur played) are both highly intelligent, cooly rational and have a no nonsense air about them.
Who do you think would've been right for the role?

Who do you think would've been right for the role?