Quailman is an imaginary superhero Doug pretends to be at times. He is voiced by Billy West (on Nick) and Tom McHugh (on Disney.) He is one of Doug's most recurring alteregos.
The idea for "Quailman", an imaginary superhero whom Doug often pretends to be in the cartoon, was inspired by a similar superhero invented by Jinkins when he was younger. Quailman is clearly a parody of the popular comic book hero, Superman.
Quailman is an alien from the planet Bob and resides in a part of the forest on Earth called the Thicket of Solitude. Quailman has the power of flight, intelligence and the Quail Eye (a power of shooting hypnotic beams from his eyes that leaves the victims "helpless and stupified").
Whenever the quail call is sounded, Quailman will always fly into action.
Quailman and his sidekick Quaildog are almost identical to Doug and Porkchop in appearance, except they have a "Q" insignia on their chests, sport red capes, has underwear over his pants and wear belts on their heads (which represent a quail's topknot).
He also teamed up with many other heroes such as Silver Skeeter, Supersport and Material Girl.