Margot Robbie's Harley Quinn and 17 Other LGBTQ+ Superheroes

An original X-Men character, Iceman, aka Bobby Drake, had long been written as straight, but he was revealed to be gay in 2015 after fellow mutant Jean Grey read his mind. The Iceman solo series by Sina Grace focuses on his queer identity, per io9. The character was not portrayed as gay in the 2003 film "X-Men 2," but with the MCU moving toward mutant stories, it's possible we could see him return.