Do you want to compare Lightspeed with Bart Allen? Discover the powers, weakness & weapons of Lightspeed and Bart Allen from Lightspeed Biography and Bart Allen Biography. Find out all about Lightspeed and Bart Allen.# Check out how is Lightspeed unique and distinct from Bart Allen. Discover their love interest, sidekicks, family tree and the movies and games list in which Lightspeed and Bart Allen have appeared. Find out everything about them here!