30 years ago today On Sunday April 12,1987, 21 Jump Street premiered on Fox. Starring Johnny Depp, Peter Deluuse, Holly Robinson, Dustin Nguyen and Fredric Forrest. (Later replaced by Steven Williams) Cast members sometimes changed adding Sal Jenco, Richard Grieco, Gina Nemo, Michael Bendetti, Tony Dakota & Michael Deluise. Hosting numerous "Before they were famous" guest stars. Airing for 5 seasons, and tackling numerous issues relevant even today.