Yo, it's Zoe! I have things for all three of your characters but it's mostly with this dude or my captain, mezcal. Hector Chasse is from Mars and his family owns a major company there as well (medical tech/Pharma) so he'd probably know Cyrus's family, and he graduated in '58 so he was in the same class as Alex and doesn't dislike him because Alex is equally as :| as him. But he's also on the Kamikaze and is fairly good friends (as much as either of them can have friends) with Castor! SO YEAH, ZANE. He will gladly slap Zane for trying to show off. The Kamikaze is his baby and he loves her more than any human being, so frankly if you start fucking around in her, he will murder you with his bare hands. (Literally. He's a Killjoy.)
My Captain (Reggie) is from TJ, and while he was long gone by the time Alex was even born, he probably knows what happened -- small colony, big gossips, and his mother/sister stayed behind and keep an ear to the ground. He's a very typically easy-going, family-oriented guy, so when he met Alex and found out he was from TJ, he probably has spent the rest of forever giving Alex bottles of tequila from his family restaurant and looking after him like a cousin. :]