21 Jump Street Wiki
21 Jump Street (TV series) Seasons
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Season 4 (21 Jump Street) of 21 Jump Street ran from September 18, 1989 to June 18, 1990. It had 26 episodes.




Main Cast[]

  • Johnny Depp as Officer Tom Hanson
  • Holly Robinson-Peete as Detective Judy Hoffs
  • Peter DeLuise as Officer Doug Penhall
  • Dustin Nguyen as Officer Harry Truman (H.T.) Ioki
  • Steven Willams as Captain Adam Fuller

Recurring Guest Stars[]

Prominent Guest Stars[]

Recurring Co-Stars[]

Notes & Trivia[]

  • This is the first and only season to air on Monday nights at 8PM to 9PM
  • Final season to star Johnny Depp and Dustin Nguyen
  • This season aired the same month with spinoff, Booker
  • Richard Greico's final appearance before the spinoff as well as the two-part crossover

Episode Guide[]

No. in
Title Directed by Written by Original air date
1 Draw the Line Kim Manners Patrick Hasburgh
Stephen J. Cannell
September 18, 1989
Unsatisfied with the final outcome of the case, Booker reopens his last investigation.
2 Say It Ain't So, Pete Jefferson Kibbee Patrick Hasburgh
Stephen J. Cannell
September 25, 1989
Hanson and Penhall go undercover in a bar college students frequent after a series of beatings.
3 Eternal Flame Mario Van Peebles Patrick Hasburgh
Stephen J. Cannell
October 2, 1989
Hanson goes undercover in a night club suspected of selling drugs.