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