I can't believe I didn't get that. I was hunting all over the 20th century!

Nice!
Thread is yours sir!

Jimmy Olsen was never a feature in Showcase, and thus wasn't in the hundredth issue. Lois Lane, on the other hand, was the first Showcase feature to graduate to its own title!

The Legion Academy was a training school for up-and-coming heroes of the 30th Century who hadn't quite brought their A-game up to the level necessary to join the LSH. Two graduates of the Academy who then went on to make it in the big leagues were Dawnstar and Timber Wolf.

Name four students of the Legion Academy who never made it into the LSH proper.

--wyld

Crystal Kid, Comet Queen, Laurel Kent, Lamprey

There were also some wonderful Academy applicants (not really, don't bother looking them up) who didn't even make the waiting list:

Open Running Sore Lass, Radar Detector Kid, Uncoordinated Queen,
Matter-Regurgitator Lad, Severe Allergic Reaction Girl and Normal Boy!

The stories that could have been told!
Tales of the Legion of Substitute-Substitute Hero Rejects!

Hey Dale, want to make some truly revolting customs????

Sure, but aren't there enough Wolverine clix?

Custom's all over it like a fat kid on a Twinkie.

Your question, sir.

--wyld

Which I was, during most of my school lunches in the 70s.

Anyway: Name a DC Comics character who has had three different costumed identities, of whom HeroClix have been made of all three. (And I mean three different sculpts, not the same name on different dials of the same sculpt.) And each one has to be recognizably the character in question; for example, Dick Grayson was Batman for a little while but none of the Batman sculpts were unquestionably Dick Grayson.

Hal Jordan! Not sure if that's who you meant, but it fits.

Good question. I'll go with Dick Grayson as Robin, Nightwing and Red Robin.

(And this question would be much easier if it were Marvel. Kang!)

Actually it doesn't. Remember the wording: "(And I mean three different sculpts, not the same name on different dials of the same sculpt.) " While there was a "Hal Jordan scenario" for the Spectre clix, the sculpt wasn't recognizably the Hal Spectre (GL mask, flaming chest hole). So no go.