9. Dr. Mrs. The Monarch (The Venture Brothers)
The rise of Rick and Morty to be part of the cultural zeitgeist in such quick order is nothing short of miraculous. One has to wonder why The Venture Brothers, another Adult Swim series, hasn't achieved the same success considering it's equally brilliant.
The stories of Hank, Dean, Dr. Venture and their bodyguard, Brock, are consistently marred by the actions of their arch-enemy, The Monarch. But no one should ever underestimate his wife and partner-in-crime, Dr. Mrs. The Monarch. Formerly known as Dr. Girlfriend, she has proven to be more than a sidekick and love interest. With her signature deep, gravelly voice and a keen, villainous mind, she has become one of the most interesting characters on a series filled with interesting characters.