Possible Clues:

• John who plays Sulu
• 'I urge you all ... to love each other without restraint. Unless you're into leather. Then by all means, use restraints' speaker Margaret
• John of “Star Trek Beyond”
• John of 2020's 'The Grudge'
• John who portrays Sulu
• Stand-up Margaret
• Chang at Hogwarts
• John who appears in a 2019 episode of 'The Twilight Zone'
• ___ Chang (ex-girlfriend of Harry Potter)
• Sulu portrayer in the "Star Trek" reboot