Ronald Dorelaine
Ronald Dorelaine is the alleged creator of Welcome Home, and presumably its parent company The Playfellow Workshop by extension. He is currently the only known member of The Playfellow Workshop.
Plot
Ronald Dorelaine is cited as being Welcome Home's in-universe creator as early as the site's initial launch on February 14th, 2022, but it is only on January 14th of the following year that the Welcome Home Restoration Project's phrasing becomes more ambiguous, instead stating that Ronald Dorelaine "must be" the creator rather than outright confirming it.
Trivia
Note: In order to ensure that this wiki has the most accurate information it can, this list does not cite any posts prior to January 2021.