Haro Whitesun was related to Beru Whitesun Lars and Dama Whitesun Brunk as their brother. He lost his life on Naboo because he aided the Rebel Alliance in their conflict with the Galactic Empire.
In the MMORPG Star Wars Galaxies, Haro Whitesun appeared as a Non-Player Character (NPC). Because of how older missions were designed in Star Wars Galaxies, Haro's look and sex would change for each player completing the mission. The quest's text, however, implied Haro Whitesun was a male Human, especially when considering his connection to Beru Whitesun Lars.