Noah - Faking It
Noah is not only transgender, but identifies as gay, defeating the inaccurate belief that transgender people are all attracted to members of their birth gender. Shane, who is gay, initially struggled with his attraction to Noah when he learned Noah was not assigned male at birth but overcame his discomfort and the two remained together.
Aaron - The Fosters
The Fosters went more deeply into trans issues with Aaron than they did Cole. Since Aaron was trans and not out and when he was arrested on The Fosters Season 5 Episode 14, the inhumanity of the prison system was even worse for him because of his gender identity. But this was far from his only storyline -- he dated Callie and interacted with her and her family a lot in stories that weren't always directly about his gender identity.
Nomi - Sense8
Nomi is an out transgender woman who is happily married to another woman -- and her story is about her hacking abilities, not her gender identity. This is refreshing because so many stories about transgender characters are about their struggles as transpeople.
Casey - Grey's Anatomy
Casey is a transgender intern who once revealed that he has a criminal record for hacking because he hacked into the DMV's computers to correct his gender identity on his license when the DMV didn't. Most of the time he is shown in work situations and is a funny, capable member of the team who is underrated.
Antoine - Queen Sugar
Although Antoine is a minor character, whenever he appears he helps give a positivity boost to Ralph Angel and their genuine friendship is fun to watch. In addition, Antoine is one of only a few transgender characters of color on TV, making his presence on Queen Sugar doubly important.
Adam was a transgender teenager who transferred to Degrassi High to escape transphobic bullying at his old school and fit in well with the rest of the teens at Degrassi. Unfortunately, the show chose to kill him off in a car accident, which was a loss for viewers as well as his friends at school.