|"Put you in a pretty little dress!''|
|1st appearance:||Tag-Sale -- You're It!|
|Voice Artist:||Charles Parnell|
Mister 1 was second only to Brock during the infamous Venture Compound Tag Sale. He is an agent for the United States Secret Service and has an awkward obsession with forcing his men to put on dresses. He is later darted and knocked out by The Monarch when he and several other agents confront him and Dr. Girlfriend in Dr. Venture's lab. He also at one point worked with Professor Impossible and helped him capture Ned, Hank and Dean.