Wyatt Jess Oleff is an American actor. He is best known for starring as young Stanley Uris in the 2017 adaptation of It and its 2019 sequel. He also played Stanley Barber in the Netflix series I Am Not Okay with This.
For Disney, he played Byron in the Shake It Up episode "Haunt It Up", young Rumplestiltskin in the Once Upon a Time episode "Think Lovely Thoughts", and young Peter Quill in the Marvel Cinematic Universe films: Guardians of the Galaxy and Guardians of the Galaxy Vol. 2.