Dominik Mysterio (born April 5, 1997) is an American professional wrestler currently signed to WWE, where he performs on the Raw brand as a member of The Judgment Day stable. The son of legendary Rey Mysterio, he first appeared in WWE as an 8-year-old in a 2005 custody storyline involving Eddie Guerrero, but made his official in-ring debut in 2020 at SummerSlam, losing to Seth Rollins. Since then, he has captured the WWE Intercontinental Championship twice and the NXT North American Championship twice, and he also holds the AAA Mega Championship, making him the first wrestler to hold titles in WWE and AAA simultaneously. In 2021, he and his father Rey became the first parent-child team to win the SmackDown Tag Team Championship in WWE history. After a heel turn, he joined The Judgment Day and has become one of WWE's most prominent young villains, while also competing in AAA's El Ojo stable.