John Crawley was a captain in the navy and a martial arts instructor that was known as the "Mad dog" and the "Killing Machine". During a mission he was shot in the back, but was eventually saved by Mr. Big. John retired from the navy and eventually joined Mr. Big's syndicate. He fought Ryo and Robert aboard the carrier, the Guardian, but was defeated. John then told the duo to meet Mr. Big at the factory.
He is very confident of his skills and has no problems with killing people.
- Energy Projectile - John can fire different types of energy projectiles from his hands.
- Energy Attacks - John can infuse his hands with energy.
- Firearms: John is proficient with many if not all kinds of firearms.
- Survival: John can survive in many kinds of rough terrain, especially jungles.
- Knife: John can also use knifes.
- Kouko Bokan! - Art of Fighting
- Mustang Man - Art of Fighting 2
- Masaki Usui - since debut
- Kaneto Shiozawa - Art of Fighting anime
- Eric Stuart - Art of Fighting anime (English voice)
- Fatal Fury Special - in Ryo's stage
- The King of Fighters 2002: Unlimited Match - background cameo
- The King Of Fighters XIII - Unnamed mention between Ryo & Ralf