Zack Stinnett is a fictional character on the CBS soap opera The Young and the Restless He has been played by Ryan Ashton since May 2017.
Zack is a young entrepreneur, who is in the process of developing a dating app. He has teamed up with Abby Newman, who is investing in his project, and knows Tessa Porter and her sister, Crystal, from Chicago.
Shortly after he and Abby started dating, Zack was revealed to be heading up a small sex trafficking ring with international connections. Zack's only other employee, aside from bodyguards, appears to be Alice Johnson. Despite this, nothing shady showed up when Victor Newman did a background check on Zack.
Tessa's sister Crystal was apart of the sex ring, but Zack had Alice send her away. Zack learned from his henchman, Leo, that Alice had betrayed him. Zack gave Alice a call, and she said she needed some time away. Zack said he understood, and gifted with some money that Alice soon learned was fake. That is when Leo got into the car, and tried to attack Alice. Alice got away, and was struck by a car. She was found and hospitalized, but disappeared and it was strongly implied that Zack had something to do with her disappearance.
During a conversation with Scott, Zack realized Scott was onto him, and drugged his drink when Scott chased after Natalia, who had just walked into the bar. Afterwards, Zack helped Scott out of the club, and Scott woke up in bed next to a dead Natalia. Zack planned to leave town, and left Abby a voicemail, breaking up with her. Paul questioned Zack since Scott said he was the last person that he had seen before passing out.
Zack changed his mind, and showed up at Abby's door with balloons to apologize. Abby was furious, but Zack convinced her that he wanted to be with her and they made love. Abby gave Zack a key to the tack house, wanting Zack and her to move in. Scott accused Zack of setting him up, but Zack denied it, and Abby believed him.
Everything came to a head at a party that was supposed to celebrate Design Date, but the party soon became about Victor making his other daughter, Victoria Newman, COO. Abby was devastated and wanted to leave, but Zack convinced her to stay and not let Victoria get to her. Zack was soon confronted by Crystal, Tessa, Scott, and Sharon Newman. They accused him of using Design Date as a front for prostitution. Zack denied it, so Crystal got on the mic and publicly exposed Zack and his connection to Newman Enterprises. Zack grabbed Abby and ran.