Shun Mochizuki (望月駿 Mochizuki Shun, もちづき しゅん Mochizuki Shun) is a fictional character in the Kunio-kun series. His first appearance is in Downtown Nekketsu Monogatari and he is a one of the "Shitennō" (Four Heavenly Kings) of Reihou Academy. Known for his quickness in combat, he is nicknamed "Motsu the Quick". He has a younger brother named Tsukasa Mochizuki, who appears in Downtown Nekketsu Baseball Monogatari: Yakyū de Shōbu da! Kunio-kun as a member of the Hattori Academy team. Ryoma Hayasaka is his best friend.
- In River City Ransom, Mochizuki was renamed to Turk.
- In Crash 'n the Boys: Street Challenge, Mochizuki is known as Wheels (a.k.a Charles Edward Darlington), a member of Team Lincoln High School.