Robert Cox is one of the pre-made townies studying at La Fiesta Tech from The Sims 2: University. He can be made playable by befriending and asking him to move in, or by marrying him. Robert has the same facial structure as Gary Walton.
Robert's name is randomized when La Fiesta Tech is generated. The name "Robert Cox" is only referenced in the game files. He is also one of the 15 pre-made members of the LFT secret society.