UPDATED. Although J.J. Abrams has confirmed that House’s Jennifer Morrison is in Star Trek, he didn’t confirm her part beyond saying it is not Yeoman Rand. Speculation has focused on a number of known Trek characters, such as Carol Marcus, Kirk’s mother and ‘Number One.’ Now there are two competing rumors ‘confirming’ who she will playing. SyFy Portal is reporting a rumor that Morrison will play “Number One,” the first officer to Captain Pike (played by Bruce Greenwood). While IESB is reporting that Morrison will play a ‘pregnant’ Winona Kirk opposite Chris Hemsworth’s George Kirk Sr.
Like Pike, Number One was only seen in unaired pilot “The Cage” which was re-used as flashback scenes for “The Menagerie.” The character was originally played by Majel Barrett Roddenberry (credited as M. Leigh Hudec). Kirk’s mother has never been seen on screen, but has been a character in many Trek novels where she got the name ‘Winona.’
Much has been made about Morrison’s recent change to blond hair (making some guess that she would be playing Marcus or Rand), but SyFy quote’s their source saying:
Everyone wants to speculate on what roles these actors are taken on because of their looks, but they should actually be paying more attention to what might be meatier roles. What’s nice is that Number One will actually have a name
The once (Barrett Roddenberry) and future (Morrison) Number Ones?