Zachary Quinto: Sylar
Zachary Quinto has done well for himself post-Heroes. Most notably, he charmed as Spock in 2009's Star Trek reboot, and reprised the role in the upcoming 2013 sequel, Star Trek Into Darkness. Meanwhile, he tapped back into the creepy side that made him famous as Sylar with his role as a ghost in the first season of American Horror Story and as an evil doctor in the second.
Zachary also came out to the public in October 2011, explaining that after the tragic suicide of gay teen Jamey Rodemeyer, "it became clear to me in an instant that living a gay life without publicly acknowledging it — is simply not enough to make any significant contribution to the immense work that lies ahead on the road to complete equality."