The LEGO Simpsons minifigures have been released in two main collectible series, each featuring 16 characters from the iconic TV show.

• The first series includes classic characters like Homer, Marge, Bart, Lisa, Maggie, Grampa, Ned Flanders, Ralph Wiggum, and others. Each minifigure comes with special accessories and a display plate.
• The second series also features 16 characters, such as Homer in a suit, Marge in a fancy dress, Bart as Bartman, Lisa with Snowball II, Milhouse as Fallout Boy, and other fan favorites like Comic Book Guy, Groundskeeper Willie, and Professor Frink. These also come in sealed mystery bags with accessories and display plates.

There are about 30 to 35 different Simpsons character minifigures across all collections, including some exclusive ones from sets like the Quickie Mart and Krusty Burger. Some minifigures have multiple versions or variants. Minifigures are sold in mystery bags, and collecting all of them involves trading due to the random distribution. These minifigures are highly collectible and come with detailed printing and special features representing the characters faithfully from the series.

If more detailed information on a specific series or list of minifigures is needed, that can be provided as well.