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