The creator you’re probably looking for is Michael Cusack ; he co-created Smiling Friends with Zach Hadel. One source also points to a YouTube interview titled “We Interview the Creator of Smiling Friends,” which describes Cusack as the creator and co-star of the show.

If you meant the creator’s YouTube name , the most commonly associated online handle is Michael Cusack himself rather than a separate channel name in the results I found.