10 Cartoon Extras Who We All Adore

10. South Park - Hidden Aliens

South Park is a cartoon series like no other, and a big part of that comes down to the fact that its primary demographic is centred towards adult viewers. Its toxic behaviour and dark humour make it a show full of edgy content that adults love and younger viewers are fascinated by, whenever they can sneak a peek.

One great hidden aspect of the show that helps to make it fun is the employment of hidden alien characters. These humanoid extra-terrestrials were introduced in the very first episode, and as the series progresses, you can continuously catch them if you keep a good eye out.

It's a great hidden detail of the show and gives fans a rewarding experience if they are re-watching and want to look out for further information that they may have missed when viewing it before.

It is easy to love these goofy aliens as they often employ unorthodox methods to hide, and it always feel rewarding when you catch a glimpse of one.

These tall grey creatures have become a synonymous part of South Park and are easily identifiable with the show.