He portrayed Officer Mike Danko in four seasons of Aaron Spelling's ABC series The Rookies, and The Bear in the 1978 surfing movie Big Wednesday, with Celia Kaye as his unnamed "bride".

Melville also had small parts in Hour of the Gun (1967) playing the role of Morgan Earp, The Thomas Crown Affair (1968) starring Steve McQueen, as Lieutenant James Crandall / Schmidt on Hogan's Heroes (1966), and the television disaster film Terror in the Sky (1971) as the co-pilot.

However, on the episode "A Mule ... Like the Army's Mule" of the syndicated anthology series Death Valley Days, Melville portrayed United States Army Lt. Jason Beal, who befriended Sandy King, played by Luke Halpin, the youngest member of the Curly Bill Brocius outlaw gang.

In the story line, Clum recruits an elite team of Apaches to aid the U.S. Cavalry in the Southwest but faces opposition within the white community.

He guest starred as a jewel thief, alongside Janie Fricke, in a seventh season episode of CBS's The Dukes of Hazzard titled "Happy Birthday, General Lee".