Maharaja Gemunu is based on the odyssey of King Gemunu (ruler of Sri Lanka 161–137 BC) who is renowned for defeating and overthrowing King Elara, the usurping Tamil prince from the Chola Kingdom, who had invaded the Kingdom of Rajarata in 205 BC.

• Uddika Premarathna
• Jackson Anthony
• Sriyantha Mendis
• Kusum Renu
• Saranga Disasekara
• Yashoda Wimaladharma