Nah it was Captain Janeway (for a few days).

Nah that was Brooke Adams, Coma was made around the same time so I tend to get them mixed up more.

Another actress of that tends to get jumbled in with them in my mind is Adrienne Barbeau (when she was young as she got older I tended to get her mixed up with Tricia O'Neal).

I'm more likely to mix up Margot Kidder with Karen Allen, not just because of playing very similar roles around the same time with which they are most closely identified but also because the were in a lot of similar television movies and minor film roles before.