heh... I always, even to the day, have been amused by the concept he survives Nuclear warheads that have gone off nearby, but had an episode where he dies by getting thrown into a brick wall.
Thus, he should fit in nicely with the scouts. If they don't think him some inhuman monster due to his looks.
As for my own suggestion, the above reminded me of:
Inspector Gadget. He after all in the series proved he could handle kids, always survives (even if by blundering), almost never gets the main bad guy, has little intellegence, and his trenchcoat could double as a cape, and needs the girl to manipulate events in his favor.
Regrettibly, he is not good at speaches, but then... neither is Mask.