Scooby-Doo! Moon Monster Madness (2015)

Franklin Wendell Welker (born March 12, 1946) is an American voice actor with an extensive career spanning nearly six decades. As of 2021, Welker holds over 860 film, television, and video game credits, making him one of the most prolific voice actors of all time. With a total worldwide box-office gross of $17.4 billion, he is also the third highest-grossing film voice actor of all time.

Matthew Lyn Lillard (born January 24, 1970) is an American actor, director, and producer. His early film roles include the black comedy Serial Mom (1994) and the crime thriller Hackers (1995). He achieved a career breakthrough for his portrayal of Stu Macher in the slasher film Scream (1996), which bolstered Lillard into the mainstream as a scream king. Afterwards, he starred in prominent roles in

Grey DeLisle (born August 24, 1973), sometimes credited as Grey Griffin, is an American voice actress, comedian and singer-songwriter. DeLisle is known for various roles in animated productions and video games. On September 27, 2018, she released her debut comedy act, titled "My First Comedy Special".