Kevin Sussman reprises “The Big Bang Theory” role in “Stuart Fails to Save the Universe”: Kevin Sussman is back as Stuart Bloom, a comic book store owner who fans first met on “The Big Bang Theory.” Sussman explains what lies ahead for his iconic character in “Stuart Fails to Save the Universe.” #BigBangTheory #KevinSussman #StuartBloom #ComicBookStore #TVShows