Diego's probably friendly with him, but since Ras is lazy and Diego is flighty, I'm guessing their friendship's a little on the shallow side. Deep conversation maaaaay be a rarity, but Diego will think well of him. Diego's one of the rich kids, buuuut he's not likely to be part of the yachting crowd.

Rafael is with Quinn on this one: he's irritating. Raf values hard work, drive and passion, and Ras seems to... be lacking all of that. He probably leaves Ras alone most of the time and remains polite, since he's not a problem student. Rafael just can't stand that lazy attitude.

Reid knows that he exists! I doubt they'll interact much, besides through Animagus Studies from time to time. After his own brushes with losing his scholarship, he's a little suspicious of people who don't have to work to stay at Gooseberry. But he's Reid, so he's not going to do anything about it.

Calvin is softer around Ribbonfins, so Ras won't see as much of his prickliness. He's got a big crush on Ravi, so shows up in that dorm sometimes asking for help with homework that he doesn't actually need help with. However, he's also really annoyed by people who don't try but seem effortlessly successful anyway (cough Cole cough) so he'll hold that against Ras a bit.