Ann Mulhall

Ann Mulhall

Doctor Ann Mulhall was a 23rd century Starfleet lieutenant commander, an astrobiologist assigned to the USS Enterprise.

In 2269, she allowed the energy being Thalassa to occupy her body, while Thalassa's husband, Sargon, and their former enemy, Henoch, occupied the bodies of Captain Kirk and Commander Spock, respectively. This was done in order to construct androids where her consciousness and that of the other entities could be housed permanently. During this process, Thalassa almost refused to give Mulhall's body back, but ultimately did so. (TOS: "Return to Tomorrow")

Ann Mulhall was played by Diana Muldaur.

Even though her doctorate was in a science department, Mulhall wore the red uniform of the operations division.