Sullivan Buckingham is one of the pre-made child townies in Bluewater Village from The Sims 2: Open for Business. He can be made playable by befriending and aging him up with another child [TS2:FT], and sending him off to college [TS2U]. Sullivan's relationships with other townies are usually randomized at the start of the game. He has a similarity likeness to Luc Shin from Belladonna Cove. Both have the same hairstyle and facial structure.
Sullivan's interests are randomized at the start of the game. It is only referenced in the game files that he has no interests. The game files also reveal that Sullivan starts off with no School enrollment or school grade. When he is first spawned in-game, he will be a C student enrolled in public school. Sullivan's name is randomized when Bluewater Village is generated. The name "Sullivan Buckingham" is only referenced in the game files.