John de Lancie: Multitalented actor and comedian, best known for playing the enigmatic alien of unknown origin "Q" on three different series of Star Trek.
Patton Oswalt: Stand-up comedian and actor starring in many festivals and comedy specials, voice of the main character "Remy" in Disney Pixar's Ratatouille, "Spence" on The King of Queens, and star of the newly revitalized "Mystery Science Theatre 3000"'
William Shatner: Canadian-born actor, most well-known for playing Captain James T. Kirk on Star Trek: The Original Series, as well as the titular character in T.J. Hooker.
"Weird Al" Yankovic: Comedy musician well-known for more than 14 full albums of humourous songs, most often presented as parodies of other well known songs by artists such as Coolio, Queen, Michael Jackson, and Lady Gaga.
The answer to this mysterious question lies with the logbook hidden in this cache. No bushwhacking required, and there are many possible routes to reach this particular area. Please make sure the cache is well hidden when you replace it.
Feel free to share any incorrect guesses you may have had before discovering the answer, but please do not reveal the actual answer in your logs.