I had seen Prelude to Axanar and recognize it may not be canon, but the story discusses the Four Years War between the Klingons and Federation. Captain Kelvar Garth (of Izar) developed innovative tactics to “fight the ship” with the new Ares Class cruisers, helping turning the tide of the Four Years War..
Last night, bingewatching TOS’ Whom Gods Destroy, there’s a character “Captain Garth of Izar” that Kirk marvels at, directly referencing “Axanar” in Kirk’s dialog. Garth of Izar, in this eposode is a ‘criminally insane’ prisoner on a penal colony who was “a former starship fleet captain, mentally unstable as the result of an injury.” In the episode, dialog indicates something about a mutiny on Garth’s ship, but it’s not really explained.
Not having seen Enterprise, Discovery or any of the other spinoffs, I gotta ask, is this the same guy? How does a genius Starfleet Captain go from war hero to criminally insane incarcerated zero?
FTR: I’m seriously impressed by the fan-film, and royally pissed that Paramount went to such lengths to squash any further work. They shot themselves in the foot, if you ask me.
If there’s some continuity, I’m all Vulcan ears!
Of course, Garth may just be a shapeshifter who took on the aspect of Garth of Izar (for…reasons. Maybe he ate him.) and because it was acting erratically, was assumed to be an insane Garth and committed.