Soekarno was born in Kutoarjo, Central Java, on 7 May 1920. The son of a noble priyayi family, he had access to a high level of education, completing his MULO studies before learning bookkeeping. His first job was as the bookkeeper for a cinema. In 1941, as the domestic film industry was seeking young, educated actors to improve the public perception of cinema, Soekarno was approached by Union Films and cast in their production Soeara Berbisa, a film which told of two men who compete for a woman's love before discovering that they are brothers. He appeared in another film for Union later that year, when he played a young assistant pharmacist in the company's romance Mega Mendoeng. In March 1942, following the Japanese occupation of the Dutch East Indies, Union was closed, and Soekarno, though working on an adaptation of the legend Damarwulan, was let go. Soekarno migrated to theatre, spending most of the occupation with the amateur theatre troupe Maya, though he did act in a single short propaganda film: Di Menara. Following the surrender of Japan in August 1945, the Dutch colonial forces, supported by the Allies, returned to the Indonesian archipelago. In the ensuing Indonesian National Revolution, Soekarno was active with Fred Young's Bintang Soerabaja professional theatre troupe. In 1948, towards the end of the revolution, Soekarno returned to film, taking a role in the South Pacific Film Corporation production Anggrek Bulan. On this film, he again worked with Ismail, who was serving as assistant director. Soekarno took another two roles in SPFC films in 1949, in Harta Karun and Tjitra. When the company was merged with Berita Film Indonesia to form Perusahaan Film Negara, Soekarno migrated to Young's Bintang Surabaja and appeared in a number of their films, including Bintang Surabaja 1951, Djembatan Merah, and Selamat Berdjuang, Masku!. As the 1950s progressed, Soekarno worked for a number of companies, including Djamaluddin Malik's Persari and PFN. He also made his directorial debut in Rentjong dan Surat. Soekarno's greatest popularity, however, was attained through his work with Ismail's Perfini studio, for whom he first appeared in 1953's Kafedo and Krisis. He gained the greatest popular recognition for his role in the latter film, a comedy about the conflicts between different families occupying the same house, and appeared in its sequel Lagi-Lagi Krisis two years later. Shortly afterwards, Soekarno changed his name to Rendra Karno, heeding a recent demand from President Soekarno that all European and feudal names be abandoned. in front of Merdeka Palace, Jakarta, in 1956 As a member of the , Rendra Karno was also involved in efforts to protect the struggling domestic film industry against imported films from Malaysia, India, and the United States. On 12 March 1956, Rendra Karno went to Merdeka Palace, Jakarta, together with nine other actors and actresses to read a list of demands to President Soekarno. These included a reconsideration of existing import laws, the establishment of a film library, and increased involvement of Indonesia in international film festivals. These demands, however, were not met. Rendra Karno remained active with Perfini into the 1960s, appearing in such productions as Tiga Dara, Tjambuk Api, Pedjuang, and Bajangan di Waktu Fadjar. For this last film, a collaboration between Perfini and Merdeka Film of Malaysia, he received best supporting actor at the 1963 Asian Film Festival in Tokyo. In 1965, after appearing in Tjendrawasih Films' Takkan Lari Gunung Dikedjar, he took a five-year sabbatical. In 1971 Rendra Karno returned to the Indonesian film industry, appearing in and serving as assistant director for Hutan Tantangan. Over the next decade he appeared in a further eight films, including Putri Solo and Para Perintis Kemerdekaan'' ; Karno also worked as a crew member for several productions. Rendra Karno died in Jakarta on 27 November 1985.
Filmography
During his four decades as an actor, Soekarno appeared in some fifty-two roles. He also directed one film: Rentjong dan Surat.