Oliver Otto is Katie and Greg's middle child and the son of Taylor and Anna-Kat. He is attempting to learn to live the rich lifestyle. He was really snobby and only cared about being rich and preppy but he has become less a snob since he started dating Gina.
In the beginning of the series Oliver was very snobby
and materialistic (though not coming from a rich family, like his friends). But in season 2 Oliver starts to care less about money because of his girlfriend Gina.