In "The Protectors," the series' pilot/TV movie, Hooker, back in uniform, trains a group of police academy recruits, including those played by Richard Lawson, Brian Patrick Clarke, Kelly Harmon, and Adrian Zmed. Hal Williams plays a senior officer, and Richard Herd makes a brief appearance as Captain Dennis Sheridan, Hooker's tough but understanding superior. During most of the series, Hooker is partnered with brash, sometimes hot-headed young rookie Vince Romano (played by Zmed). Romano is also a combat veteran of the Vietnam War, serving in the Army Infantry towards the end of U.S. ground forces involvement in the war. Hooker acts as his mentor both professionally and socially. The age difference generally being the key hook of the partnership, the pair quickly became fast friends and a good team.