I don't know cactus & succulents at all but that one reminds me of Haworthia.

Yea, that's a haworthia, unsure of the species or hybrid name, looks kinna like one called Mandy's hybrid I think, I'll double check, but it could be one of several other ones too

Looks like this:

Agree with everyone, some type of Haworthia.

Yea, there's a world of haws that are similar to that one, a few come to mind but I doubt I can spell them.