Dynomutt #4 was published by Marvel Comics on May 1, 1978, as part of a series that began in 1977. Mark Evanier writes, and art comes from Carl Gafford, Dan Spiegle and Joe Sinnott. This 36-page issue features Scooby-Doo, Shaggy, Boo Boo Bear, Dynomutt and Blue Falcon, among 7 characters cataloged on VerseDB.