Biggs

in short, biggs knows he cant use speed. so he has one of the following strategys

1. Force wedge to do it (ive a feeling this one wont be accepted)
2. Run across , and his huge steel armour should ensure any cannonballs bounce off
3. Take out the cannons with his newly adapted weaponry, then walk across

and if all else fails

4. Burn the bridge, then no one can do it!