Character mistake: Bessie's last name is misspelled "Higginbottom" on the newspaper Happy shows her.
The Mighty B! (2008)
1 character mistake in Stuffed Happens - chronological order
Starring: Amy Poehler, Dee Bradley Baker, Dannah Feinglass Phirman
Bat Mitzvah Crashers/Super Secret Weakness - S1-E5
Continuity mistake: In "Li'l Orphan Happy" when Ben makes his mom the tuna salad, it has lettuce around it, but in the close-up the lettuce disappears. When it gets zoomed-out on, the lettuce is back.