Everyone has their own ways of interpreting the characters they use in their GoAnimate videos.
- While a number of users use the "Ivy" voice setting for Caillou, many others use the "David" voice setting instead. (Though with the David voice setting having been removed from the interface, the Joey voice setting has become a common alternative.) Caillou can also be anywhere from just his canonical Bratty Half-Pint self taken up a notch, to The Hero of the series outright, to a dangerous sociopath with a Hair-Trigger Temper depending on the user.
- Rosie tends to waver back and forth between being just an innocent (if Too Dumb to Live) victim of Caillou's schemes to ratting Caillou out as soon as he acts out (whether innocently or maliciously.) Other times, she's just as antagonistic as everyone else and joins Boris in deliberately antagonizing Caillou. Other times she's every bit as malicious as her brother and causes trouble wherever she goes. Whether she speaks in correct grammar or in broken, third-person sentences like her canon self also varies.
- Doris's characterization also tends to vary wildly among users. She tends to range between being genuinely nice but firm mom who is willing to take Caillou's side sometimes (albeit still giving long grounding times like all the other parents), a Gadfly that borders on a screwball, an apathetic Jerkass who pays Caillou no mind unless he's misbehaving, to being every bit as Ax-Crazy as her husband.
- Dora's appearance in the videos frequently changes
depending on the user as well. Rosie and Boris also frequently vary in appearance among users. - The parent characters can be anything from just overly stern to somewhat abusive to every bit as sociopathic as their troublemaking kids depending on the user.
- In some videos, there's one Barney who is a troublemaker and a jerk, and in others, there are two Barneys (an evil red and purple Barney, and a good purple and green Barney). Also, Barney can be either visibly fat or appear to be skinny (if there are two Barneys, both are usually the latter weight).
- It tends to vary among users whether or not Red/Teeth versions of characters (such as Boris, most notably) are separate entities from their normal counterparts or are transformations of the characters themselves, though having them as separate characters seems to be the most common interpretation.
- Sometimes, the kid characters will be written as their canonical ages (Caillou at age four, Dora at age eight, etc.) Other videos will Age Lift them into middle school kids or teens. Still other videos will age canonical preschoolers into elementary school students (keeping Dora as an eight-year-old but aging Caillou into her classmate is a common one). And then, some videos will give contradictory signifiers of age (for instance, portraying Elmo from Sesame Street as being in a school that doesn't seem like a preschool, but still speaking in third person).
- Finally, the severity of the punishments given to the trouble-making kids tends to fluctuate as well. Some users just use the absurdly long grounding time and call it a wrap. Others frequently if not exclusively use "Punishment Days" (a string of consecutive punishments), while still others just have the trouble-making kid get severely injured (if not outright killed) as punishment.
