Private Psy and WATTson

Private Psy and WATTson are a traveling duo of investigator Pokémon with no apparent owner.

History
At some point prior to the series, WATTson and Private Psy became friends. Private Psy then apparently decided that he wanted to be a private investigator, and applied to be one through the local police station. Bemused, the Jennies accepted his application, and passed him on his exams.

They later attached themselves to the Viridian City Police Station, where Private Psy did his best to assist the Jennies and WATTson rested in its discontent. After Team Rocket's attack on the Viridian City Police Station, Private Psy left the station to investigate; while he looked for footprints, WATTson found Team Rocket's trail, and led Rose and Cobalt to Route 22.

Personality
Private Psy is lovable but clueless. He does not appear to display any natural talents for police work or investigation, but he does his best.

WATTson is almost perpetually angry, frustrated, discontented, etc. It is not known why WATTson hangs around with Private Psy. WATTson is more competent than Private Psy, leading Rose and Cobalt to Route 22, where Billy and Bonnie fled.

Description
Private Psy is a physically-normal Psyduck who wears a trenchcoat and hat (identified as a fedora, bowler, or deer stalker cap) and carries a magnifying glass to investigate with. His Abliity is Damp, preventing WATTson from exploding in anger.

WATTson is a normal Voltorb, except for having very large, angry, eyebrows. When WATTson gets angry, Private Psy's ability activates, keeping WATTson from exploding, but also making it even angrier.