It’s a lot of fun reading about other characters in the Invincible universe. It’s not a groundbreaking storyline, but I really enjoy superhero characters who have no special skills beyond invulnerability. They can’t do anything normal humans can’t do - they’re just immune to the physical consequences. They still need to pay for a cab to get around, they still need to pay their bills, they worry about their families - not having to think about their personal survival doesn’t change any of that. It allows they to be really fun while still mostly relatable.