Diesel is the son of Wolf. He has his father's appearance, but his eyes are brown.
Diesel is a very outgoing, cool, and fun-loving character who likes to enjoy life, especially since he found friends who consider him a friend, not an enemy. He is upbeat, smart, funny, and cheerful, but serious and heroic when he needs to be. He likes to enjoy playing video games, tinkering with technological gizmos and eating. He also tends to be stubborn at times and has had some serious arguments with Marcus in the past, but he does make a capable second-in-command in Marcus's absence. He also frequently bickers with his sister, mostly about the latter's reckless nature and her taste of music, though the two entertain a close friendship. Diesel often plays the protective big brother role of the team, getting quite serious when they are upset and does whatever he can to make them feel better. He is never hesitant to put a member in their place when he thinks they are being inconsiderate or irrational.
He fights using a blaster.
Trivia:
Diesel claims he was named after his grandfather.
It's revealed Diesel, his sister, and friends were sent to live with the Star Fox team by their parents for their own safety.