Be Cool, Scooby-Doo! - Season 1 - Eps 23: El Bandito
Fred takes the gang to Mexico so they can experience the local Day of the Dead festivities. A mystery quickly pops up involving a long-dead historical figure named El Bandito, causing Fred to want to make himself a legend just like El Bandito. During the mystery, Daphne believes her deceased Aunt Cookie is communicating with her somehow.
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)