Inspector Willoughby (AKA Secret Agent 6 7/8) was a secret agent with droopy eyes, a bushy mustache, and laconic voice. He solved mysteries and fought crime. He was very similar to Tex Avery's Droopy in voice and stature. When on the job, he always goes after any villains which ends with them behind bars. Despite his diminutive height, he is able to physically restrain and use impressive judo moves on men twice his size.