[5] Minister Nanayakkara has stated that he intends to repeal the Prevention of Terrorism Act and replace it with a new law.
[6] His father Yasapalitha Nanayakkara was a popular director in Sri Lankan cinema and stage drama as well as a screenwriter, producer, lyricist and actor.
Harshana has four uncles - Vasudeva, Padmakumara, Hemakumara, Asanga and four aunties - Swarna Sakunthala, Ranjani, Lanka and Nilmini.
[9] His uncle Somasiri Alakolanga, who is married to Harshana's mother's younger sister is also an actor.
[10] His elder brother, Rajeewa is also an actor, screenplay writer, and assistant director.