In the First Season of the Mid 2000's Disney Show, W.i.t.c.h. one of the episodes involved the Sheffield Institute receiving a "foreign exchange" student and half the school getting infatuated with her except for the main six.
And by nature of the episode's premise, a couple foreign dubs took liberty in how they wanted to portray this student.
Spoilers ahead, so I suggest you watch the episode first, it is Episode Seven: Divide and Conquer.
In the Original English Dub, the Fraud Exchange student is called Sandra and has the audacity to say she comes from Swizerland, after charming almost every guy at school, the girls gather to vent their frustrations:
1) The fashion designer in Hay Lin is deeply offended by Sandra claiming that she makes her own clothes.
2) Cornelia and Elyon comment how she seems to have based her terrible Swiss accent off of watching Haidi movies.
3) Taranee has her blood boiled by how Sandra feels inherently superior to her because she read all of War and Peace in *Zhe oRhigiNal RhuShian* while Taranee didn't.
4) Irma just complains that the only reason Martin isn't bothering her is that now he has Sandra to simp for. She can't stand him, but she can't stand seeing someone take advantage of him even more.
5) As for Will, she dicides that Ice Skating out of Spite is a Good Idea if it means she can make sure Sandra will keep her Fraudulent hands off of Matt.
But if we go to the French Dub, it would appear that the people in charge realised that a self absorbed, attention seeking twat would not dedicate enough time and effort to pretend to know French, German and Russian, let alone convince half a school, so they decided to call her Sandy and make her an American, because "Only an American can attain all the aforementioned Qualities" so thought the French Dubbers.
So now Cornelia and Elyon are convinced Sandy got her accent by watching Terrible Westerns.
And Sandy brags about how she read all of Shakespeare's plays in "L'anglais Originale"
I would have made a comparison between the English dub and the Russian one, since War and Peace is Russian, so I thought the Russians will need to localised it in a way that makes sense somehow, but sadly, I don't speak Russian. French is all I could look into.
Hope you enjoyed this little Dubbing Exchange.