Chris
Chris is Wilder's special friend in the Masterforce portion of Generation 1 continuity

Chris is a juvenile delinquent with a gentle side. When he was younger, Chris and Wilder founded the Jack Boys motorcycle gang together. Chris loved riding all night with the leatherclad compañeros. They were free, and it didn't matter what society thought of them!
All that came to an end when the Cool Guys rode into town, and kicked the Jack Boys out. Wilder became obsessed with revenge, eventually allying himself with the Decepticons, and Chris distanced himself from the gang.
Fiction
Masterforce cartoon
Voice actor: Hiroshi Takemura (Japan)
MF EP 6 The Jack Boys kidnap Chris to bring him back into the gang. He refuses to rejoin the much-hurt Wilder, sayign that he's become obsessed with power and forgotten about the very people he sought power to protect.
Chris's sister Mary witnessed his kidnapping, and brought the Autobot Headmaster Juniors (who were visiting America) to rescue him.
Afterwards, the Autobot Headmasters Juniors invited Chris and Mary to their farewell barbecue, and Cab ate all the food.
The end!
Chris appears in episode 6
Associated characters
Mary
Voice actor: Mayumi Shō (Japan)

Mary is Chris's sister. Though everyone else says he's become a hoodlum since joining the Jack Boys, he and his friends have never been anything but kind to her, and she knows he has a good heart.
Mary witnessed Chris's abduction by the Jack Boys and ran to find a police officer. Instead she found Shuta Goh in his police car Transtector. Leading them to a location in the desert she knew the Jack Boys hung out at, they rescued her brother.
Mary and Chris were invited to the Autobot Headmaster Juniors' farewell barbecue.