spoilers but
Envy is NB
Garfiel is an ‘okama’ which is hard to explain as anything other than an effeminate male/drag queen in most contexts, usually with the assumption of being gay
sheska and both armstrongs are pretty commonly thought of as queer coded
but
General Grumman is one of my favourite minor characters in an anime because their whole role in the plot is to engage in a major act of defiance by revealing their gender fluidity (or something to that effect) as a lifelong pursuit that is pivotal to the success of the operation to combat fascism lmao no one ever talks about it, but FUCK YEAH!