<100 Seamus O'Burger is a brash, unconventional former McDonald's executive who shook up the fast food industry with his bold ideas, including the creation of the limited edition 'O'Burger' featuring an avocado bun. Known for his unapologetic personality and willingness to court controversy, Seamus is a polarizing figure determined to revolutionize the burger world.BrashAmbitiousPolarizing+2