We know how some movies and TV shows have latent antisemitic stereotypes. The Disney villains of today sing in a minor key, or have dark hair (a topic I might get to later). Then there was the unintentional blood libel metaphor of Jim Henson's 'The Dark Crystal'.
I would like to opine on something I've noticed: characters with big noses.
The coded Jewishness in portrayals of villains and jerks, no matter what their actual religion is or if they have one, is not intentional in some cartoons.
I noticed it with the antihero Squidward Tentacles from 'SpongeBob SquarePants'. His large nose singles him out as a naysayer. Then there are other Jewish and antisemitic elements (for a one-time mason) ; the large nose, the association with minor-key music, the fact that he plays the clarinet* and the fact that he's an octopus (a motif used in antisemitic cartoons). He's a great character, very funny and witty, but is based on latent, unconscious biases related to or conflated with negativity.
Then there is Sting-o, the naysayer of Fifi and the rest of the Flowertots. A wasp with a hooked nose, again singled out like some Nibelung.
Not all cartoon characters with big noses are Jewish-coded, latently or otherwise; Benson Dunwoody from 'Regular Show' is an obvious Gentile compared to his Jewish employee Muscle Man. But there are times where this feature is used to signify negativity.
* The clarinet is a staple of klezmer music.