As of 2013, Warner Bros. Pictures was developing a fully animated Scooby-Doo feature film with Atlas Entertainment. Charles Roven and Richard Suckle, who produced the first two live-action films, were producing the animated film, and Matt Lieberman was writing the film. In 2014, Warner Bros. was restarting the film series with Randall Green writing a new movie. As of 2015, Warner Bros. had Tony Cervone directing an animated film, with Allison Abbate as producer and Dan Povenmire as executive producer. Originally planned for a September 21, 2018 release, it was later pushed back to May 15, 2020, with Dax Shepard co-directing and co-writing. The Hollywood Reporter announced that Frank Welker will be reprising his voice role as Scooby, and that he will be joined by Will Forte and Gina Rodriguez voicing Shaggy and Velma, while Tracy Morgan will be voicing Captain Caveman, from the Hanna-Barbera series "Captain Caveman and the Teen Angels" and Deadline reported that Zac Efron and Amanda Seyfried will voice Fred and Daphne. In addition, Ken Jeong will be voicing Dynomutt, Dog Wonder from Hanna-Barbera series of the same name and Kiersey Clemons will voice Dee Dee Sykes, a character from Captain Caveman and the Teen Angels. Dick Dastardly, from Hanna-Barbera's "Wacky Races", will be the film's main antagonist. In March 2020, the film's theatrical release was delayed indefinitely due to the COVID-19 pandemic. On April 22, 2020, Warner Bros. announced that due to movie theater closures the theatrical release for "Scoob!" had been cancelled, with the film released instead on Premium Video On Demand in the United States and Canada on May 15, 2020, the original date of release. In July 2020, Warner Bros. confirmed the film would still play in theaters in select countries with relaxed COVID-19 restrictions.