The Monarch is Dr. Venture's arch nemesis on The Venture Bros.  The Monarch's revilary with Dr. Venture is definitely more one-sided and pretty much the funniest thing ever.  The Monarch modeled himself after the Monarch butterfly after they "raised him" when his parents died.  The Monarch is wealth from his dead parents.

The Monarch married his girlfriend, Dr. Girlfriend, who is now known as Dr. Mrs. The Monarch.  Yeah, nothing short of amazing.

The Monarch Quotes

The Monarch: And deadly! Just like the monarch butterfly of my namesake.
Henchman: Wha? Butterflies aren't deadly

They seem to have already discovered the fleshy jig of the mommy and daddy dance

The Monarch

Venture Bros. Quotes

Hunters Gathers: Her tits were like "coming home from school and finding out your old man ran over your cat" sad.
Brock Samson: Mournful tits. She has mournful tits. They're like two suicide notes stuffed into a glitter bra.

Hank: You are not the boss of me
Sgt Hatred: Au contraire, I am tony danza to your spunky Alyssa Milano. I am full on Charles In Charge of you