"No, I was being sarcastic."
Red Guy comes from the youtube series Don't Hug Me I'm Scared, DHMIS for short. He was dragged into the locked room by SuperGaming101.
He is red and has long hair that covers his face and neck. Unlike Yellow Guy and Duck, he doesn't wear any clothes. Red Guy is the tallest of his friends. He has red, yarn-like hair that covers his head and two eyes on top of his head. His whole body is red. In the sixth episode he wears a suit until he takes it off to sing on stage. Blue is his favorite color.
Out of all of his friends, he is the most mature, sarcastic, sharp-witted and seems to have the most common sense of the 3 puppets. He often makes sarcastic comments. Red Guy seems to be pessimist of his three friends, as he doesn't show much interest in the lessons when he was in the DHMIS universe, and would rather go about his own business. It is possible that he is older or more mature than his other two friends.
He cares a lot for Duck and Yellow Guy. He is always very bored. He can get impatient with anything that makes him angry, but most of the time, he is very calm.
He may try and do things to stand out.
In the Locked Room
Red Guy does not have much of a significance in the Locked Room. He was suddenly bought there by SuperGaming101. He has gotten transformed into a Killer Robot before, as STRAWBERRY. In The Lair of the Dark Star, Red Guy, along with Duck and PEKKA, was killed by Asriel's Hyper Goner in the fight against him, although they were all revived at the end of the episode. However, Red Guy and Duck were killed for good when Chara stabbed them, killing them instantly.
Duck: Best friends forever. They are both not so sure about the Locked Room, and all the other characters.