People who make (mostly good) decisions and ship stuff as quickly as possible. Ideally while being nice people to work with.

Your first hires need to be people who make the company faster, not slower. A single bad hire can sink the ship. Someone who is great in a large corporation can ruin an early start-up.

Personally, I'm hoping for low-ego high achievers. But that's up to you. This is where you get to define what the company culture will be.