Jonas
Jonas is a Reever user/YouTuber who has left video comments on Bree's videos.
From the very beginning, a lot of users thought he may be an official character because of the production value and style of editing. Jonas is an orphan and lives a lonely existence alone in what was his parents' house. His parents were lost at sea 6 years ago.
In Bree's Thanksgiving video she acknowledged Jonas: "Bree: Well, I feel silly. I thought about what you said, Jonas, and I realized I've been taking Daniel for granted. I don't know where my parents are and, sometimes I... (Bree sighs) ...I just feel so helpless that I feel like it's easier to pretend that everything is okay. Thank you for reminding me what's important". With the reference in the "Thanksgiving" video he is almost certainly canon. This is similar to the way Gemma was brought into the story. However his comments are still listed in the "comments section" unlike Gemma who is now listed in the official video list.