Off the top of my head, Rahim is here if she has any training needs, or decides to visit the facility. I imagine she's probably good at her abilities as is? Outside of that, he's not super invested in music, or parties, or talking. But his sister's an agent, so they could have interactions through that too.
Alec wants to adopt and befriend multiple government agents, so he'll probably try to chat Hannah up, if he hasn't done so in the past already. He likes music and parties, and thinks her powers are hella cool together. And would like to steal them.
Quentin has sound manipulation, and is also heavy into conspiracy theories, and thinks half the island are just government plants. idk what kind of interaction he and Hannah could have - but he's watching her, and he thinks she's suspicious as fuck. As suspicious as, if not more than, at least 60 percent of the island.
Bart is probably completely irrelevant, but he's also probably the only one i have that won't distrust her to some degree based on her job. He thinks she's awesome, even if they've never met lol