He first appeared in a Marble Hornets parody from the YouTube channel "NeilCicierega".
He is supposedly the Slender Man's older brother and, as apposed to his younger brother, loves everything happy or joyful.
Unlike Slender Man, Splendorman actually has a face. He also wears a black suit with many colorful dots, a bow tie, and a small hat with a red stripe.
He is also very tall like Slender Man, but does not have any tentacles.
His purpose is to cheer up people who do good deeds.