Sabrina's Alakazam - Pokémon Origins

During his fight for the Marsh Badge, Red defeated Sabrina's Alakazam with his Haunter. 

Sabrina - Pokémon Origins

Defeated by Red and his Haunter, Sabrina gave him the Marsh Badge as proof of his victory. 

Agatha's Gengar - Pokémon Origins

During their battle at the Pokémon League, Agatha sent out her Gengar to fight against Red's Dodrio. 

Red's Fearow - Pokémon Origins

Encountered by Red after his victory at the Pokémon League, Fearow was caught following a battle with Red's Persian. 

Magikarp Salesman - Pokémon Origins

A travelling salesman who breeds and sells Magikarp for $500—Red bought one from him.

Red's Magikarp - Pokémon Origins

Red bought his Magikarp from a travelling salesman in the Pokémon Centre just outside of Mt Moon.