Two of Dean Hargrove's series have resulted in successful spin-offs. Diagnosis Murder grew out of an episode of Jake and the Fatman, while Jake and the Fatman itself arose from an episode of Matlock.
In 2007, Dean Hargrove was interviewed for documentaries on the DVD release of The Man From U.N.C.L.E.
In 2003, Dean Hargrove produced, financed and submitted a 14 minute film called "Tap Heat," to the Sundance Film Festival.
Dean Hargrove reunited with actor Joe Penny in the Hallmark Channel mystery movie series Jane Doe. Hargrove had previously worked with Penny on Jake and the Fatman.
Dean Hargrove reunited with Dick Van Dyke and Barry Van Dyke (stars of Diagnosis Murder) in 2006 with the start of Murder 101 on the Hallmark Channel. Hargrove wrote the teleplay for the first movie and has produced the subsequent films in the series.
When he could not secure the rights to G.K. Chesterton's Father Brown mystery series, Dean Hargrove developed a series based on Ralph McInerny's Father Dowling.
He won an Emmy, along with the other producers of the NBC Mystery Movie, in 1974 for Outstanding Limited Series.
Dean Hargrove has been nominated for two Edgar Allan Poe Awards (1986, Best Television Episode for Matlock - "Diary of a Perfect Murder," and 1985, Best Television Feature or Miniseries for Perry Mason Returns).
Dean Hargrove was handpicked by executive producer Fred Silverman to write and produce the Perry Mason revival series in 1985.
He has his own team of writers and producers that he uses on TV shows created and executive produced by him. The team usually consists of Joyce Burditt, Anne Collins, Robert Hamilton, Gerald Sanoff and Joel Steiger.
Dean Hargrove: I think the audience has always been sophisticated. The networks lost the audience when they went for those high-concept action shows that usually turned out to be empty-headed and short-lived.
Dean Hargrove: Raymond Burr was a strong personality on Perry Mason. Angela Lansbury plays a very appealing character on Murder, She Wrote. I like mysteries when there's a good character to write for.