The blue guy here is Space Station Happiness's second in command. He's always kind of detached, apparently, but actually he takes everything with a light spirit and always sees things from an optimistic point of view. He's also a fairly powerful esper. A typical, recurrent scene on the station happens in the meeting room for the senior officers, when everybody is inside. The doors open, and he comes in floating belly up in mid air, with eyes shining and light coming out of his mouth, and says in a eerie voice, "We're all in danger...". That's normally the prolog to yet more trouble for the crew ;-)