Main

• Gerald McRaney as Rick Simon
• Jameson Parker as A.J. Simon
• Mary Carver as Cecilia Simon, the brothers' mother
• Eddie Barth as Myron Fowler (seasons 1–2), A.J.'s ex-boss and their more successful competitor
• Jeannie Wilson as Janet Fowler (season 1–2, regular; seasons 3 and 6, guest), Myron's daughter. She works for her father, attends law school and helps the Simons from time to time, much to her father's annoyance. During season two, she works as an assistant D.A.
• Tim Reid as Lieutenant Marcel Proust "Downtown" Brown (seasons 3–6), the Simons' friend in the police department
• Joan McMurtrey as Lieutenant Abigail Marsh (seasons 7–8)

Recurring

• Daphne Reid as reporter Temple Hill (1983–1987)
• Scott Murphy as Police Officer Nixon (1984–1988)
• Donna Jepsen as Officer Susie Jepsen (1985–1989)
• Marlowe, their pet dog

Development

The original 1978 television pilot, called Pirate's Key, was set in Florida. When CBS picked up the show, the characters' home was changed from Florida to San Diego, California, where the show was filmed for the first season. Due to the production costs and low ratings, filming and production moved to Los Angeles, although the show continued to be set in San Diego for the course of its eight-year run on CBS.

The series was created by executive producer Philip DeGuere, who credited his inspirations to a request from a CBS executive to create something like a modern "Butch and Sundance", and a spec pilot DeGuere had recently read about a divorced husband and wife detective team written by Bob Shayne, whom DeGuere hired to write during the first two seasons. Shayne continued to write episodes for the series during its run, and together, they went on to create the CBS series Whiz Kids.

Original run

Simon & Simon was almost canceled in 1982 due to low ratings. However, at DeGuere and Shayne's request, CBS decided to give the series another chance by moving it to Thursday nights at 9 p.m., following Magnum, P.I. The new season began with a two-hour cross-over episode with a story that began on the already popular Magnum and continued on (the mostly unknown) Simon & Simon, in an attempt to carry Magnum's audience over to Simon & Simon. (see below) The effort worked, and the show's ratings quickly rose; it became a hit in that slot and continued to draw ratings for the next several seasons. Simon and Simon's peak years in the ratings were seasons 2–4, where it landed at no. 7, no. 5 and no. 7 respectively. In September 1984, The Cosby Show premiered in the 8 p.m. time slot against "Magnum" and was an immediate ratings hit and also substantially increased the ratings of the following NBC comedy shows, such as Cheers airing at 9 p.m. against "Simon & Simon". "Simon & Simon" fell to 29th in the 85–86 season and never recovered.

Simon & Simon moved to Saturday nights late in its run, and the ratings dropped considerably. CBS only committed to a 13-episode season for the fall of 1988 but cancelled the series with two episodes left unaired, including the series finale. That episode did not air until the show entered syndication.

Theme music

For the first season, the song "Best of Friends", composed by Linda Creed and Barry De Vorzon and performed by the Thrasher Brothers, served as the series' theme song. More specifically, the instrumental version of "Best of Friends" appeared at the beginning of each episode (and short clips of the instrumental version occasionally appeared within episodes, even after the first season), while the lyrical version appeared at the conclusion of each episode.

At the beginning of the second season, the second and more recognizable instrumental theme song, composed by Barry De Vorzon^[1] (who had previously composed the theme to the 1970s police drama, S.W.A.T.) and Michael Towers, was introduced. The theme consists primarily of an electric bottle-slide guitar lead with a saxophone interlude and remained until the last episode of the final season.

Both theme songs had extended versions released; the Thrasher Brothers in 1982, and De Vorzon/Towers's version in 1984.^[2][3]

Crossover with Magnum, P.I.

The episode "Emeralds Are Not a Girl's Best Friend" concludes a crossover that begins on the Magnum, P.I. episode "Ki'is Don't Lie", wherein Higgins helps the Simons track the woman with stolen Hawaiian artifacts to Latin America. For repeat and syndication purposes, a second conclusion was also shot, wherein the fleeing villain is caught, allowing the Magnum episode to be wrapped up and the episode to be rerun as a "stand alone" episode. Consequently, the Simon & Simon concluding hour, "Emeralds Are Not a Girl's Best Friend", did not appear in reruns for many years, nor did the original broadcast version of "Ki'Is Don't Lie". Both original versions have since been released on DVD.^[4][5]

Additionally, A.J. Simon appeared on the Whiz Kids episode "Deadly Access". In return, the Whiz Kids characters Richie Adler, Hamilton Parker, Jeremy Saldino, Alice Parker, and Irene Adler appeared on the Simon & Simon episode "Fly the Alibi Skies" the following night.

Simon & Simon: In Trouble Again (1995)

In this reunion movie, which premiered on February 23, 1995 some years have passed, and a now divorced A.J. (whose ex-wife is Janet Fowler from original series) works in Seattle as an attorney. Rick stops by to visit en route to delivering an expensive yacht. The trouble starts when the yacht is hijacked—with Rick and A.J.'s mother Cecilia on board.

The Greatest Event in Television History (2012)

The Greatest Event in Television History premiered on Adult Swim, on October 12, 2012. Hosted by Jeff Probst, the program went behind the scenes during the making of a shot-for-shot remake of the Simon & Simon opening sequence with Adam Scott and Jon Hamm in the roles of A.J. and Rick, respectively. The special also featured the appearances of Paul Rudd, Gus van Sant, Megan Mullally, Paul Scheer, and Kathryn Hahn.^[19]