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