Strontium Dog is a long-running British comics series starring Johnny Alpha, a mutant bounty hunter who lives in Earth's future. The series was created in 1978 by writer John Wagner (under the pseudonym T. B. Grover) and artist Carlos Ezquerra for Starlord, a short-lived weekly science fiction comic. When Starlord was cancelled, the series transferred to the British science fiction weekly 2000 AD. In 1980, Wagner was joined by co-writer Alan Grant, although scripts were normally credited to Grant alone. Grant wrote the series by himself from 1988 to 1990. Wagner revived the series after a ten-year hiatus in 2000. After Ezquerra's death in October 2018, the series was put in indefinite hiatus with no current plans for its continuation