Marge Simpson

Marge Simpson is one of the main characters from the animated sitcom series The Simpsons.

Life on the Fast Lane
When having Bowling Lesson with her instructor, there is a scene where the instructor takes off Marge's shoe, exposing her barefeet as she is wiggling her toes.

Thirty Minutes Over Tokyo
At the end of this season finale episode of Season 10, Marge loses her shoe when she saved Lisa when they competed in a Japanese game show where the first prize is ticket back to Springfield. But in a continuity error, Marge has her shoe back on when they fall into the Volcano, and land on stage back into the game show.

A video of the action can be seen here: https://www.youtube.com/watch?v=gAFH8ze5CPM&t=4m28s.

Bye Bye Nerdie
At the beginning of this episode, Marge is seen wearing only one shoe when the kids miss the bus for school.

Desert couch gag
In this couch gag of Season 16, Marge is shown with only one shoe when she and the family attempt to sit on the couch (made of sand) only for it to crumble at the end.

Super Franchise Me
In this episode, Marge is seen wearing only one shoe when she is sitting on the bed rubbing her right foot when talking to her husband Homer.

I Want You (She's So Heavy)
In this episode, Marge is seen wearing only one shoe due to wearing a bandage after injuring her ankle.

Pixelated and Afraid
Marge loses her right boot when she and Homer are nearly attacked by a badger.

Poorhouse Rock
Marge is seen with one blue heel after she got a hangover from watching her movie with her friends.

The Simpsons Meet the Bocellis in 'Feliz Navidad
In this animated short, Marge removed her pink slipper (which is normally white) to prevent Bart from opening gifts.

Fan Art
No