----Was it my imagination or were there two types of Talosian voices? Sometimes the voices sounded normal and sometimes they were high pitch.----
Yeah, that was because Malachi Throne, the guy who did the voice of the head Talosian, came back later in the series to guest in "The Menagerie", which of course repackaged "The Cage".... so they had to go back and re-re-dub the Talosian's voice to avoid confusion. Later on, the original color print of "The Cage" was lost, so they reconstructed the episode using the color footage from "The Menagerie" sandwiched together with the footage from Roddenberry's original black-and-white workprint of "The Cage". So what you ended up with was the Talosian's voice changing back and forth in the reconstructed "The Cage".
----Also Spock, while serving under Pike, seemed to have an ATTITUDE problem. Very unlike the calm Spock who served under Kirk.----
Spock WAS pretty freewheeling during the Pike years.
-Dan