We expand our one "one-off series" with a huge topic: a breakdown of the "Top 5 One-Off Guest Stars v1.0" in Trek. It's those actors and guest stars who made an impact in just one, single role in 800-plus hours of Star Trek. There are plenty of actors who have played multiple roles or recurring roles, but this is about those amazing one-time guest stars! From huge stars to character actors, host Jim Moorhouse and guests Charlynn Schmiedt and Peter Hong highlight all their favorite standout performances.

Episode Rundown:

Level One Diagnostic Cycle: We roll call our previous one-off topics in breaking down exactly how specific we are going to be in highlighting a myriad of one-off performances.

Prime Directive: Our panel gets into the details of how they defined their lists and made their choices.

The Order of Things: Everyone reveals their picks with the usual "Five words and a hashtag" summary, and also highlight the episode in which their choice appeared.

Secondary Systems: Our guests get deeper into Trek lore by adding a few selections for the picks that didn't quit make the list.

Regeneration Cycle: Our guests recaps their picks and we discuss some of the interesting statistical anomalies that arose from the discussion.

Temporal Distortion: We flashback to a voicemail of picks from our Top 5 Voyager Underrated topic back on Episode 127.

If you have your own picks you would like to relay to us, please hail us at 609-512-LLAP (5527) and record your own personal TrekRanks log to let us know your Top 5 One-Off Guest Stars v1.0. (Or you can record it yourself and just DM us @TrekRanks on Twitter.) Your comments could be used in a Temporal Distortion on an upcoming episode (and might get you a chance to be a guest on a future episode, too).

And don't forget to check out TrekRanks.com for our entire back catalog of episodes and a detailed rundown on every episode of Star Trek ever.