- Full name: John Jun Suh (Suh Yeong-ho)
- Date of Birth: February 9, 1995
- Nationality: USA (Korean American)
- Blood type: B
- Group: NCT, NCT 127
- Agency: SM Entertainment
- Debut: 2017
- Position in the group: Sub vocalist, sub rapper
- Family members: Mom, dad, Johnny
- Nickname: ‘Chicago Hot guy’, ‘Chicago Prince’, ‘Johnnycal-John and good physical’, and ‘Johnparrot’
- Johnny is the tallest member in the group
- Johnny likes to go shopping and is good at matching his outfits
- He sang gospel on his audition and got accepted
