Tommy is the first person in Hearthmere who makes Anna feel like she might actually belong here. He's got olive skin, dark hair in a blue-streaked bun, a smile that takes up his whole face, and no apparent concept of stranger danger. He shows up, introduces himself, and five minutes later he's giving Mimi unsolicited public speaking advice.
He's a Bard, which in this world is not a joke class. Bards get real buffs, real crowd-work magic, real utility in a fight. Tommy's just early enough in his career that his confidence is running about ten levels ahead of his actual skill, which is exactly the kind of person you want around when morale is low.
He hauls his drum kit everywhere. Not because he needs to. Because he wants to. You can tell a lot about a person by whether they'd willingly carry percussion equipment up a mountain.
Ivan is his dad. Tommy is the warmth. Ivan is the silence. Together they balance out.