Sibu Radebe (Photo: Facebook)
According to his manager Wesley Garner, Sibu had been battling cancer for two years.
"Sibu has passed away. We can’t speak for the family. They are still getting things together," he said.
Radebe was born and grew up in Soweto and started his professional TV career at the age of 12.
He was also a presenter on SABC 1 children's show YoTV.
Friends and colleagues have taken to social media to pay tribute to the actor.
"I'm going to miss so much Sbu Diva, our daily conversations, your constant encouragement and you constant care," Claudia Maluleke wrote.