The Grim Adventures of Billy, Mandy, Felicity, and Toby is a fanmade series and an upcoming TV series by Princess Dynasti. It is a spinoff of The Grim Adventures of Billy and Mandy. Like the original series, Mandy walks on the black screen and talks to the viewers.
Two siblings, Felicity, a gothic, happy-go-lucky 12-year-old girl and Toby, her intelligent, knowledgeable 9-year-old brother befriend the Jamacian Grim Reaper, Billy, a dimwitted boy and Mandy. a smart, merciless and cynical girl to go on supernatural and weird adventures.
- It will be aired on Cartoon Network in the USA and Teletoon in Canada.