Sue Heck (Eden Sher), or Sue Sue Heck if we’re going by her ridiculous full name, was one of the best characters in The Middle, and I’m so disappointed that we never got her spinoff series. The overlooked middle child of the Heck family and the only girl, Sue Heck is a hilarious character in The Middle and one of the most loveable. Optimistic and sunny to a fault, Sue is often let down by those around her, but her ability to spring back up from every setback was always as funny to me as it was inspiring.

https://screenrant.com/sue-heck-why-canceled-middle-pilot-mistake/