Time for a proper fullbody pic of lion guy, who I've decided is named Sebastian Steele, AKA Bastion (especially when heroing). He's the leader and financer of the superhero organisation the other supers belong to, and also owns a very successful business of some sort (I haven't decided, lmao) to have plenty of money to throw at things.

He always wanted to be a hero, so he jumped at the chance to test an experimental super-serum, which granted him a predisposition to being muscular, super strength, super stamina, and super durability. All three superpowers are essentially needed to use his super strength, since it basically works by disabling the safety limits on his muscles so they can work much harder (meaning he'd hurt himself with his super strength without the other two). It also means his 'base' muscle strength does matter, so he does need to work out sometimes to get the most out of his powers.

He can give off a kinda gruff and serious impression, but he does know how to lighten up and have fun when the situation calls for it.