Both Colin Dale who plays Nick Diamond in the film and the miniseries and Dursley McLinden who played his older brother Tim Diamond in the film and the miniseries acted in only one or two other projects and stopped acting on screen altogether after the miniseries ended. Dursley McLinden sadly died in 1995 from AIDS.
Based on "The Falcon's Malteser (1986)", the first in a series of humorous detective novels for young teens about private detectives The Diamond Brothers, a goodhearted but slightly dimwitted older Tim and his cunning street smart little brother Nick, who often fight gangsters and electric bills, written by Anthony Horowitz who also wrote the screenplay.
The movie was followed up by a six-part miniseries "The Diamond Brothers" in 1991.