Richard X. Slattery was a character actor in film, theater and television. Slattery starred in such films as Walking Tall, The No Mercy Man and Herbie Rides Again.
Richard Xavier Slattery was distinguished by a square-jawed look and a rough, gravelly voice that made him ideal as a "tough guy" character, usually as a cowboy or a cop or a drill sergeant type. He had been an NYPD police officer for twelve years and started his acting career in police academy training films, and in community theater in the Bronx.
Slattery appeared in the first season of The Odd Couple, episode #2 "The Fight of the Felix". After Oscar gets into a fight with a hockey player played by Slattery, Felix tries to stand up for his roommate, but ends up in the boxing ring instead.
He also has had numerous guest appearance roles in television, including Route 66, The Alfred Hitchcock Hour, 77 Sunset Strip, Gunsmoke, Rawhide, The Andy Griffith Show, Bewitched, F Troop, The Virginian, Bonanza, The Partridge Family, The Mod Squad, Emergency!, The Waltons, Ironside, Kojak, The San Pedro Beach Bums, and Knight Rider