Interested in theatre, he ran away from his elementary school in Yogyakarta to join a troupe in Klaten, under the leadership of Djafar Wirjo.

Waldy's parents ultimately decided to support his career and help him learn to lead a cabaret.

He toured the Maritime Southeast Asia, reaching Siam and the Malay Peninsula, and further refined his craft with the input of actors such as Rd Ismail.

[6] Waldy migrated back to the stage, first joining Djawa Baru before establishing his own troupe, starring Dewi Mada.

[3] Feature film production in the Indies recommenced in 1948, amidst the Indonesian National Revolution, a military and political conflict between the newly proclaimed Republic of Indonesia and the returning Dutch colonial forces.

[5] A 1955 article in Doenia Film credited Waldy with the discovery of several rising stars, including Elly Joenara, Zainal Abidin, and Sukarno M.