Sad Ghouls is the 15th episode of Pamela and Chad's Awesome Adventures that features a crossover with the characters from Scooby-Doo and the Ghoul School. It was released on October 9, 2015.
Pamela, Chad, Becky and Oscar go to Miss Grimwood's School, and finds the girls sad.
- Phantasma's, Elsa's, and Sibella's voice actresses reprise their original roles from the Scooby-Doo and the Ghoul School movie. Winnie's original voice actress passed away on January 7, 1988, from liver cancer and Tanis' original voice actress retired.
- Oddly enough, Natalie Palamides and Kristen Li both voice Buttercup and Bubbles respectively in the TV series of The Powerpuff Girls.
- Moria Kelly replaces Glynis Johns as Miss Grimwood, and Frank Welker reprises his role as Matches.
- Alisa is absent in this episode.