Film producer Anant Singh has released a statement paying tribute to Jamie Bartlett.
News of Bartlett's death broke on Monday evening. He was 55, and the cause of death has not been revealed.
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"It is with great shock that I learnt of the sudden passing of Jamie Bartlett last night. Jamie was a master of his craft and was known for the powerful performances he delivered in iconic roles he played in films and television shows," said the statement.
"I have had the pleasure of working with Jamie over three decades, starting with the Iraqi war themed film, Bravo Two Zero; followed by the TRC film, Red Dust, in which he played an apartheid-era security policeman; the thriller Prey and Mandela: Long Walk to Freedom.
"In December 2004, Jamie travelled with me and Archbishop Desmond Tutu to the Dubai Film Festival where Red Dust was honoured with a gala screening as the closing night film. In Mandela: Long Walk to Freedom Jamie did an amazing job of playing Madiba's prison warder, James Gregory. He researched the role intensely and gave a brilliant and authentic performance.
"Jamie was a role model to young actors entering the world of film and television. His passing leaves a huge void in the industry, and he will be missed by his peers.
"My sincere condolences go to Jamie's family and friends, and I wish them strength during this difficult time of bereavement. May his soul rest in peace," he concluded the statement.