Logan Thirtyacre is a one-time character making an appearance in Bowser Junior's 1st Grade! Part 4. He was a background character who finally got to speak in Bowser Junior's 1st Grade! Part 4 where he drew a picture of himself saying that he wanted to be a YouTuber but Jackie Chu didn't like it.
- He broke the fourth wall by saying he wanted to be a YouTuber when he grew up, although YouTube wasn't around in Logan's 1st Grade year (2001-2002, and YouTube was made in 2005.)
- His puppet was used as a dead body in The Secret Door! and as a zombie in Zombie Bowser!