Nok

Nok (ノック), also known as Knock, is a contestant in the 28th World Martial Arts Tournament in the Dragon Ball series. He is a young man with long, reddish-brown hair, typically seen wearing a black shirt with a white letter 'Y' on it and an orange bandana. Nok is characterized by his arrogant personality and lack of respect for elders, particularly mocking Vegeta’s age. He also enjoys intimidating those he deems weaker, such as causing Uub to feel stage fright before his match with Goku. During the tournament, Nok taunted Vegeta, leading to Vegeta casually backhanding him into a wall, instantly rendering him unconscious and forfeiting the match. Despite his brief appearance, Nok is a memorable character due to his boastful and disrespectful attitude. Due to a continuity error, Nok briefly appears again in a later episode, only to flee the scene with Captain Chicken.