Launcelot is a developer for Royale High, and according to callmehbob, he sometimes makes animations for the game, as well as hiding diamonds around different realms. He has also designed the terrain around a few of the Royale realms, though it has not been disclosed which ones. He is married to callmehbob.
Upon meeting Launcelot, the player will receive the 'Met Boy Doe!" Badge. The description reads: "You met boy doe. He does anything girl doe asks him to do." which most likely means he does whatever Barbie asks of him.
Twitter and Twitch
Launcelot has a twitter account at https://twitter.com/launcelot92 where he posts mostly about domestic life and his dogs, as well as announcing when he is steaming. His twitter account was created in September 2014.
He sometimes streams League of Legend and Terraria at https://www.twitch.tv/launcelotdev92.