The bulldog, Spike and his son Tyke, in Tom and Jerry cartoons is often seen with a rather bear-like stance like Butch above. It helps give the bulldogs a macho swagger and Butch often has his elbows bent out so that it looks like he's in the same position a human with their fists on their waist would be.
Same with Tom and the other cats and dogs in the cartoon series. Tom becomes more and more anthropomorphic as time goes on though.
Spike and Hector, the two bulldogs and Sylvester the cat from Looney Tunes.
Most digitigrade animals (cats and dogs) in Looney Tunes are shown plantigrade in fact.
Porky Pig averts this trope in The Looney Tunes Show by having the unguligrade stance that real pigs have, but he usually appears more digitigrade or plantigrade.
Puppetry example: Big Bird in Sesame Street is a human in a suit, therefore Big Bird has the same joints as a human. Jim Henson's sketchbook shows a design that would have averted it (the puppeteer would have faced backward, so his knees seemed to bend back instead of forward), but it was deemed impractical.
Buddy and Annie the T. rexes from Dinosaur Train are examples, but most of the other dinosaurs that are supposed to be digitigrade avert this trope.
Inversion: Mice are supposed to be plantigrade, but the mice in the original Angelina Ballerina cartoon are digitigrade (all the better to dance en pointe, one supposes).
Then un-inverted in the more recent CGI cartoons, where the characters are much more human-like (including always wearing shoes), pushing them into full Petting Zoo People territory and out of this trope.
Similarly, the Animated Adaptation of Redwall gave even the mouse characters a digitigrade stance. Made somewhat awkward by the fact that Matthias and Cornflower wore sandals that were still designed for a plantigrade stance.
My Little Pony: Friendship Is Magic goes both ways with this. While the feet of many of the ponies don't entirely look like actual hooved feet, they do actually walk like real equines. There are a number of occasions where they appear to have "elbows" in the middle of their forelegs, though, for gesturing purposes.
Inverted with Pepper Clark, the skunk in Littlest Pet Shop (2012): She is digitigrade, while real skunks are plantigrade.
Cartoony Foot Shape Examples:
In the Tom and Jerry franchise, Jerry's feet bear very little resemblance to the feet of real mice and the two toes he has look rather like the two toes on camel feet.
Speedy Gonzales from Looney Tunes has two-toed feet as well, but his feet look more like rabbit or hare feet with two toes.
Porky Pig normally has feet and hooves shaped like slippers.
Goofy, Max, and even Mickey and Minnie Mouse have feet that look awfully like human feet.
Mickey and Minnie also have hand and foot proportions that would be more appropriate for a Canada Lynx than for a mouse.
Nearly all Dogfaces have awfully human-like feet in fact.
Minerva Mink from Animaniacs has feet that look a lot like human feet.
Skippy Squirrel's feet look unusually huge and catlike for a squirrel.
Cows in the Classic Disney Shorts from the mid-1920s to the early 1930s, whether four-legged or two-legged, have feet that look somewhere between cats' feet and camels' feet.
The Ren & Stimpy Show. Ren's feet usually look appropriate for a dog (aside from having three toes instead of four), but can sometimes look somewhat humanoid, while Stimpy has plantigrade toeless feet.
Literally everyone on SWAT Kats, especially T-Bone and Razor.
Rare Inversion: Many human characters in The Flintstones, especially female ones, have feet that are shaped rather like cats' hindfeet, including Wilma Flintstone and Betty Rubble.
Another inversion: Human characters in The Fairly OddParents have three-toed feet that are shaped rather like cat's hindfeet.
Only when looked at from a distance. When the feet are shown close up, the feet are shown to have four toes and generally have a human like shape. Ocassionally, they will show more frightening details