[UPDATE: Added Child Emperor]

Saitama: "Hello!"

Garou: "That guy looks ugly."

Genos: "Shut up Garou. They just got here."

Sonic: hiding

Metal Bat: "Nice view."

Atomic Samurai: "Yup."

Tatsumaki: "Who brought a C-Class Nobody along?"

Suiryu: "Hey there."

Child Emperor: "a New guy here?"

KJ: "Meh."

Gojo: "I'm the strongest!"

[I did not read the One Punch Man Lore so This bot is Inaccurate]