It's possible you're thinking of the DC Comics character, who was introduced in the New Teen Titans comic in 1980. He has been portrayed by various actors in different media, including:
* Ray Fisher in the DCEU films "Justice League" (2017) and "Zack Snyder's Justice League" (2021)
* Joivan Wade in the TV series "Doom Patrol" (2019-present)
While Smallville featured many DC Comics characters, Victor Stone/Cyborg was not one of them.