Chris Alcaide made ten appearances in THE RIFLEMAN, portraying different characters in each episode.  He is best known for his roles in westerns, having appeared in over 400 television western programs.  Alcaide, a veteran character actor of great range and talent appeared in a wide variety of projects, including "The Glass Menagerie," "The Wild One" with Marlon Brando, "Assassination" with Charles Bronson and "Kid Galahad" with Elvis Presley.  Other movie credits include "The Miami Story," "Gunslinger," "Miami Expose," "The 49th Man," "Massacre Canyon" and "Rock All Night."

Patricia Barry, born Patricia White, is an American actress who has appeared in more than 130 television shows and movies in a career spanning 50 years.  Barry was signed to Columbus Pictures following her graduation from Stephens College, Columbia, MO.  She appeared in numerous TV series and soap operas popular in the 1950s through the 90s, including "Twilight Zone" (1959–1964), "Perry Mason" (1957–1966) "Dr. Kildaire" (1962–1965), "The Bold Ones: The Lawyers" (1972), "Columbo" (1975), "Charlie's Angels" (1976), "Guiding Light" (1984–1987) and "Murder, She Wrote" (1989–1994).  Barry also starred in her own TV series, playing the title role of Kate Harris in "Harris Against the World" (1965–1965).  She also appeared in two critically acclaimed made-for-TV movies, "First, You Cry" (1978) and "Bogie" (1980).  She made three appearances in The RIFLEMAN, portraying Adele Adams in "Three-Legged Terror" (episode 30) and "The Woman" (episode 32), as well as Laurie Hadley in "A Time for Singing" (episode 64).  Barry also guest-starred in other TV westerns, including "The Virginian" (1962–1971) and "Gunsmoke" (1955–1975).

Robert Knapp was an American film and television actor who appeared in more than 80 movies and television shows during his 25-year career.   Interested in the entertainment industry at an early age, he quit school at age 17 and got a job as a messenger at Warner Bros.  He succeeded in attaching himself to producer/second assistant director Irving Asher's unit, and after entering military service, spent two years with the same unit in Sri Lanka (Ceylon) making training films.  He returned to Warner Bros. after he was discharged and worked in publicity, but eventually he became a second assistant director.  His acting career was launched when he was spotted by an agent at the Biltmore Theater, where he was co-starring with Mary Boland and Charles Ruggles in "One Fine Day."  Knapp's film debut was in "Rogue River" (1949), starring Rory Calhoun and Peter Graves.  Some of his other film credits include "Mesa of Lost Women" (1953), "Scandal, Inc." (1956), "Revolt at Fort Laramie" (1957), and "Rawhide Trail" (1958).  A year earlier, in 1957, he appeared in "Tomahawk Trail" (1957), playing Pvt. Barrow opposite Chuck Connors' Sgt. Wade McCoy.

In the late 1950s/early 60s, Knapp segued into television.  He guest-starred in many popular TV shows, including the crime dramas "Dragnet" and "Dragnet 1967" (1951–1959 and 1967–1970), "M Squad" (1957–1960), "77 Sunset Strip" (1958–1964), "Perry Mason" (1957–1966), "Adam-12" (1968–1975) and "The F.B.I." (1965–1974), as well as the action series "Highway Patrol" (1955–1959), the adventure series "Sea Hunt" (1958–1961) and the medical drama "Ben Casey" (1961–1966).  He also had a recurring role as Ben Olson in the daytime drama "Days of Our Lives" (1965–present).

Knapp made one appearance in THE RIFLEMAN, portraying Dan Hewitt in "A Time for Singing" (episode 64).  He guest-starred in several other westerns, including "The Roy Rogers Show" (1951–1957), "Hopalong Cassidy" (1952–1954), starring William Boyd, "The Adventures of Rin Tin Tin" (1954–1959), starring Lee Aaker and James Brown, "Death Valley Days" (1952–1975), hosted by Robert Taylor, "Cheyenne" (1955–1963), starring Clint Walker, "Laramie" (1959–1963), starring John Smith and Robert Fuller, "Gunsmoke" (1955–1975), starring James Arness, and "Bonanza" (1959–1973), starring Lorne Greene, Michael Landon, Dan Blocker and Pernell Roberts.

John Milford was an American actor, whose long career, primarily in television, included more than 164 acting roles spanning five decades.  His first big break came with an uncredited appearance in the 1956 Oscar awarding winning film "Marty," starring Ernest Borgnine.  Milford appeared in every television genre, from crime dramas, including "The F.B.I." (1965–1974) and "Mannix" (1967–1975), among many others, to sci-fi adventures, including "The Six Million Dollar Man" (1974–1978) and its spin-off "The Bionic Woman" (1976–1978).  He appeared in many of the most popular series of their eras, including the sci-fi thriller "The Invaders" (1967–1968), sci-fi mini-series "The Planet of the Apes (1974), the family dramas "Little House on the Prairie" (1974–1983) and "Highway to Heaven" (1984–1989), and the sci-fi mystery "The X-Files" (1993–2002).

Milford played recurring roles in several series, including Ike Clanton for one season in "The Life and Legend of Wyatt Earp (1955–1961), Sgt. Kagey in "The Lieutenant" (1963–1964), Lt. Paul Hewitt in "The Bold Ones: The Lawyers" (1969–1972), and a co-starring role as Captain Dempsey in the action comedy "Enos" (1980–1981).  In addition to the Wyatt Earp series, Milford appeared in many of the most popular western series of the 1950s through '70s, including "Bonanza" (1959–1973), "The Virginian" (1962–1971) and "The Big Valley" (1965–1969).

John Milford made eleven appearances in THE RIFLEMAN, portraying Ross Porter in "The Blowout" (episode 43), Dub in "The Coward" (episode 53), Jonas Winters in "The Horsetraders" (episode 60), Bro Hadley in "A Time for Singing" (episode 64), Morgan in "Meeting at Midnight" (episode 74), Marsh Watson in "The Pitchman" (episode 80), Hadley in "Baranca" (episode 82), Jack Solby in "Dark Day at North Fork" (episode 100), Reade in "The Clarence Bibs Story" (episode 104), Jess Grady in "The Journey Back" (episode 115) and Lt. Price in "The Assailants" (episode 149).  Milford also appeared in two episodes of THE RIFLEMAN spin-off "Law of the Plainsman" (1959–1960).

Milford ran the Chamber Theatre on Cahuenga Blvd. West in Hollywood, where he helped many young actors get a start in the entertainment industry.  He is also credited with the original design for the Hollywood Walk of Fame.

Robert Osterloh was an American film and television actor who appeared in nearly 130 movies and television shows in a career spanning almost 25 years.  He made his film debut in "The Dark Past" starring Lee J. Cobb, William Holden and Nina Foch, and he went on to be cast in mostly uncredited or small roles in films representing a range of genres, including the crime drama "White Heat" (1949), starring James Cagney, the science fiction cult classic "The Day the Earth Stood Still" (1951), starring Michael Rennie and Patricia O'Neal, the historical biopic "Seven Angry Men" (155), starring Raymond Massey, and the horror thriller "I Bury the Living" (1958), starring Richard Boone.

Osterloh guest-starred in a wide variety of genres in television, including the iconic crime drama "Perry Mason" (1957–1966), starring Raymond Burr, the gothic horror series "Thriller" (1960–1962), starring Boris Karloff, the crime drama "The Untouchables" (1959–1963), starring Robert Stack, and the off-beat sci-fi anthology series "The Outer Limits" (1963–1965).  Osterloh made one appearance in THE RIFLEMAN, portraying Walt Durkins in "A Time for Singing" (episode 64).  He guest-starred in a number of other westerns, including "Gunsmoke" (1955–1975), starring James Arness, "Bonanza" (1959–1973), starring Lorne Greene, Dan Blocker, Pernell Roberts and Michael Landon, as well as "The Deputy" (1959–1961), starring Henry Fonda, and "Wagon Train" (1957–1965) starring Ward Bond and later John McIntire as the wagon master.

Hope Summers was an American actress of the stage, radio, film and television.  Her acting career began in the 1930's, when she worked primarily in community and stock theater and radio.  Her career was most active in the 1950's and 1960's, when she appeared in numerous films and television shows.   Her film credits include "Zero Hour!" (1957), "Inherit the Wind" (1960), "Spencer's Mountain" (1963), "The Hallelujah Trail" (1965), "The Ghost and Mr. Chicken" (1966), "The Shakiest Gun in the West" (1968), "Rosemary's Baby" (1968), "Charley Varrick" (1973) and her last movie, "Foul Play" (1978).

Summers began working in television in the 1950's, guest-starring in a wide variety of genres, but especially Westerns.  Her television credits include "The Loretta Young Show" (1956–1959), "Maverick" (1957) and "Wagon Train" (1957), "Gunsmoke" (1958–1963), "Dennis the Menace" (1959), "Petticoat Junction" (1963) and "The Phyllis Diller Show" (1966).  She played numerous memorable recurring roles in many hit television series, including "Hawkins Falls: A Television Novel" (1950).  Her best-known role was Clara Edwards, Aunt Bee's gossipy neighbor, in "The Andy Griffith Show" (1960-1968) and its spin-off, "Mayberry R.F.D." (1968–1971).  Summers appeared in 16 episodes of THE RIFLEMAN as Hattie Denton, owner of the General Store.  Hattie was first introduced in "Eight Hours to Die" (episode 6).  Her last regular television role was playing Olive in "Another Day" (1978).