Robin Williams (Leigh City Technology College entrants, driver of Leighbot and Leighviathan and NOT american comedian and actor)
David Crosby (somewhat insane teacher of Dartford Girls' Grammar School team, of Detonator, Napalm, Shadow Of Napalm and Napalm II and NOT Byrds and Crosby, Stills, Nash and Young guitarist and singer)

I'll get back to you on the second one :P