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