Star Trek: 10 Things You Didn't Know About T'Pol

10. T'Pol Vs T'Pau

T'Pau first appeared in the Original Series' episode Amok Time. She was revered enough to make a personal request of Starfleet - allowing the Enterprise to stay in orbit of Vulcan while Spock underwent Pon Farr - and to have it granted. One hundred years prior to this, she was slated to be the longest serving Vulcan on a Starfleet vessel - and she was to be played by Jolene Blalock.

T'Pau was originally to be the officer serving aboard Enterprise. This would lead to her understanding of humans, which in turn would lead to her becoming such an important voice on the Federation political circuit.

However, there were concerns over the licensing rights to the character, who had been created by Theodore Sturgeon when he was writing Amok Time. In a scenario similar to the Tom Paris/Nick Locarno switch that occurred between The Next Generation and Voyager, the character was remodeled so that Enterprise wouldn't have to pay royalties for the use of T'Pau in every episode that she appeared in.

The character would however go on to actually appear in the show's fourth season, played by Kara Zediker.