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