Jaaan
A man named John who's so overconfident he thinks he's the main character of every story. Also used for the fourth person who is probably cursed.
Jaaan, you're not the main character. You're the sidekick who forgets his lines.
Jaaan, you're the fourth person who somehow got into this group chat and now we're all confused.
Jaaan, you're not a hero. You're just a guy who thinks he's one.