Quinto first appeared on television in the short-lived television series The Others, and appeared as a guest star on shows including CSI, Touched by an Angel, Charmed, Six Feet Under, Lizzie Mc Guire, and L. Later that year, he joined the cast of Heroes as Gabriel Gray, better known as the serial killer Sylar. Abrams-directed reboot of the Star Trek film franchise was officially announced at the 2007 Comic-Con.
Quinto was born in Pittsburgh, and grew up in Green Tree, Pennsylvania.
He attended Saints Simon and Jude Catholic School (defunct as of 2010). "Margo" (née Mc Ardle), worked at an investment firm and later at a magistrate's office.
He also played a prospective dog adopter (based on Quinto's own experience) in Dog Eat Dog, written and directed by Sian Heder, and premiered at the Los Angeles Film Festival in 2012.
Quinto has also kept up his theatre experience, which includes roles in a variety of productions, including classics such as Beckett's Endgame at the Los Angeles Odyssey Theatres in 2003, In 2010, Quinto's company Before the Door Pictures produced Margin Call, an independent film about the financial crisis.
He is best known for his roles as Sylar on the science fiction drama series Heroes (2006–2010), Spock in the reboot Star Trek (2009) and its sequels Star Trek Into Darkness (2013) and Star Trek Beyond (2016), as well as his Emmy nominated performance in American Horror Story: Asylum.
He also appeared in smaller roles on television series such as So No TORIous, The Slap, and 24.
She called up and said, 'Would you do me a favor and be in my short film?
'" The company has projects in film, television, new media, and the graphic novel arena.
"For me Leonard's involvement was only liberating, frankly," says Quinto.