Dr. Somnambulo (voiced by Frank Welker) is a sleep therapist. After having trouble sleeping, Jon Arbuckle, upon seeing Somnambulo's commercial, seeks help from the doctor. After an incident, Jon's ability to sleep is controlled by Odie's barking. After the events of the episode, Somnambulo eventually undoes the hypnosis.
He wears clothes with swirls on them.
To be added.
Jon's Night Out
He is a hypnotist that Jon saw on a commercial, that tried to cure Jon's imnosia.
- His name is based off of the Latin word "Somnambulate", meaning "To sleepwalk".