W. Jayasiri est né le 1 mai 1947 à Hirimbura, Galle, British Ceylon. Il était acteur. Il est connu pour Night Rider (2022), Gamani (2011) et Akarsha. Il est mort le 22 septembre 2024 à Colombo, Sri Lanka.
His first school was Kithulampitiya Central Girls' College. Then he moved into Matara, and studied at Sumangala Vidyalaya, Matara and then to St. Thomas' College, Matara until S.S.C exam. He was expelled from the school due to his misbehaviors and finally attended Vidyaloka College, Galle. He was selected to University of Colombo for higher studies on Economics, Indian history and Sinhala.