I'd agree. Star Trek was an original series with the perfect ensemble cast. Its interesting to contrast the cast with the original cast of Star Trek that appears in the pilot episode. The only actor who appeared in the pilot and the series is Spock / Leonard Nimoy.
Majel Barrett was in the pilot (Number One) and the Original series (Nurse Chapel)... < /nerd>
I beg to differ, but in the pilot, Majel Barrett was the 2nd in command but was moved due to network pressure against a female in such a leadership position. ;)