Last Updated: Miley Cyrus' Debut: Did You Know She First Appeared In Her Father's Show Doc? Miley Cyrus made her acting debut at the age of nine with her father's popular comedy-drama Doc. She appeared in three episodes of the series. Miley Cyrus, who is a global star now, rose to fame due to her popular Disney sitcom, Hannah Montana. In the show, she played the dual role of a teenager Miley, also a secret teen pop star Hannah Montana, trying to live the 'best of both worlds'. Even over a decade later, Miley Cyrus is still synonymous with Hannah Montana. However, did you know this was not her first television show? She actually made her acting debut with her father's show at the age of nine in a series called