Born in the city of Pontianak, W.D. Mochtar began his educational journey at HIS, laying the foundation for his future endeavors. However, his life took a dramatic turn during the Japanese occupation between 1942 and 1945, when he joined the Japanese army's Keigun Heiho unit in Pontianak. Not only did he serve as a soldier, but he also showcased his talents as a singer and dancer in entertainment programs.
After the Japanese occupation ended, Mochtar moved to Java and joined T.R.I. in Krawang, before relocating to Jogya and eventually becoming a guerrilla fighter in West Java. Following the transfer of sovereignty, he left the army and entered the film industry, making his debut in "Tirtonadi" in 1950. He went on to become a permanent player at the Tan & Wong Bros studio, which later changed its name to Tjendrawasih Film, and appeared in numerous 1001-style films that were popular during that era.
Mochtar took a hiatus from film between 1955 and 1959, but returned to the screen with the 1960 film "South Storm," directed by his future wife, Sofia Waldy. The couple founded the Libra Music al Show, which organized entertainment events across the country, featuring a cast of film players, including Mochtar, who showcased his singing and dancing skills.
His breakthrough role came in 1965 with the film "Matjan Kemajoran," which catapulted his name to the top. He continued to work with renowned directors, including Wim Urnboh, and solidified his position as one of the top actors in the industry. Mochtar received the Best Actor award at the 1971 PWI-Jaya selection for his performance in "Sanrego."
Throughout his illustrious career, he appeared in numerous films, including "The Bride of Teens" (1971),"Mama" (1972),"Figure" (1973),"Against the Storm" (1974),"Krakatau" (1977),"The Adventurous Adventurer" (1978),and "The Job" (1979),among others.