Bruce Wayne

Bruce Wayne is the billionaire CEO of Wayne industries, notable playboy, and one of Gotham's finest. But his alter is the dark protector of Gotham, Batman. He himself is one of the smartest men on earth and a great fighter.

History
His backstory follows the prime earth backstory of his character for the most part. I will just be noting down the differences

As a child before his parents death he was friends with Osborn Cobblepot until his father was killed and his mother went missing and he was sent to britain to live with distant relatives.

After his parents' death due to the stress he was putting on himself and stress from the press he ended up developing OSDD-1B.

He loves all his children, it's just that he has no idea how to deal with that fact or express it in a healthy manner.

For a period of time he was married to Talia Al Ghul after consummating the marriage but once Talia revealed that she got pregnant from that he got so over protective of her and the unborn child that he nearly got himself killed. She then told him that she had a miscarriage and called off the marriage. He was heartbroken by this and made his later engagement to Selina all the harder.

Headmates
Bruce has OSDD-1B and as such is a member of a system. He acts as the host and is the original.

Batman
Batman is a workaholic first and for most. His primary concern is Gotham city and the safety of the world. He is also obsessive over it and his training. He fronts with Bruce while they are out patrolling though during some more stressful missions he may front alone. He also tends to front alone while doing research for a case.