Be Cool, Scooby-Doo! - Season 2 - Eps 1: Halloween
While trick-or-treating with his cousin Scott and a friend when he was little, Fred has a scarring experience when he is ambushed by an evil witch near an abandoned cabin. Several years later, Fred and the gang run into the very same witch on Halloween night in another town. As the gang attempts to solve the mystery of the witch, they must also convince Fred that he is incorrect in his belief that a mystery cannot be solved on Halloween night.
About Be Cool, Scooby-Doo!

Title: Be Cool, Scooby-Doo!
First Air Date: 2015-10-05
Last Air Date: 2018-03-18
Status: Ended
Rating: 8.053/10 (from 113 votes)
Language: EN
Seasons: 2
Total Episodes: 53
Network: Boomerang Cartoon Network
Genres: Comedy, Animation, Mystery, Kids
Production Companies: Warner Bros. Animation
Synopsis
The gang decide to go traveling in the Mystery Machine, seeking fun and adventure during what could possibly be their last summer break together. However, havoc-wreaking monsters seem to be drawn to them, appearing almost every stop of the way.
Cast

Matthew Lillard
Shaggy Rogers (voice)

Grey DeLisle
Daphne Blake (voice)

Kate Micucci
Velma Dinkley (voice)

Frank Welker
Fred Jones / Scooby-Doo (voice)