Here is an interesting video showing more actors that crossed over between B5 and Star Trek
http://www.youtube.com/watch?v=Yu3Cvwx0yDg
A number of them I didn’t know about and couldn’t recognize due to alien makeup.
Here is a blast from the past.
http://www.youtube.com/watch?v=fhnXMSKNz8w&feature=user
Extras
Perhaps the most compelling extras in the box set of Star Trek: The Original Series: Season Three are the two versions of the pilot episode, “The Cage.” As any fan of the series knows, the original pilot “The Cage” was incorporated into the two-part Season One episode, “The Menagerie” in a creative effort to save money for the increasingly costly show. In disk seven, fans have the unique opportunity to view “The Cage: The Restored Version” and “The Cage: The Original Version.”
After reviewing these two versions back-to-back, I came to the conclusion that I was not enough of a Trekkie to really distinguish a substantial difference between them, except that parts of “The Cage: The Original Version” are in black and white and all of “The Cage: The Restored Version” is in color. However, “The Cage: The Original Version” has the welcome addition of a brief introduction from 1986, “The Unseen Pilot,” with Gene Roddenberry. As Roddenberry explains, the portion of “The Cage: The Original Version” that is in black and white is all that remains of the original footage that was prepared for the pilot episode. In addition to expounding on some technical details surrounding the pilot, Roddenberry portrays himself as a bit of a rebel in the world of TV programming in his efforts to mask Star Trek’s social critique behind a traditional western action/adventure piece set in space. None of this is revelatory to fans of the show or anyone who has seen more than two episodes. Neither is the history of the pilot episode, which was rejected for being too cerebral and strange. Rebel or no, Roddenberry heeded NBC’s warning to follow a more traditional blueprint for his second try at the series which became the Star Trek phenomenon.
http://www.tvdvdreviews.com/startrek3.html
psik