Actor. He was best known for playing the character roles of police officers, corporals, coaches, geologists, corporals, assistant directors, sergeants, captains, criminals, deputies, cadets, deputies, doctors, detectives, pilots, university presidents, generals, and sheriffs, but mostly as good cops or bad cops, usually in horror films, or crime films and crime television series. He will be best remembered for playing the role of 'Captain Charles "Charlie" Devane' in 110 episodes of the action crime drama television series, "Hunter," which originally aired from 1986 to 1991, and which also starred Fred Dryer and Stefanie Kramer, tells the story of Rick Hunter who is a renegade cop who bends the rules and takes justice into his own hands. Partnered with the equally stunning and rebellious Sgt. Dee Dee McCall, the tough-minded duo set out to crack down on L.A.'s slimiest criminals. He also reprised his role of 'Captain Charles "Charlie" Devane' for the television reunion film, "The Return Of Hunter: Everyone Walks In L.A." (1995). He is also best remembered for playing the role of 'Paul Dreyfus' in the action-adventure thriller film, "Dante's Peak" (1997). The film which was directed by Ronald Donaldson, which was written for the screen by Leslie Bohem, and which also starred Pierce Brosnan, Linda Hamilton, and Jamie Renée Smith, tells the story of a volcanologist who arrives at a countryside town recently named the second-most desirable place to live in America, and discovers that the long-dormant volcano, Dante's Peak, may wake up at any moment. He was born one of five children as Charles John Hallahan Jr. in Philadelphia, Pennsylvania, to Charles John Hallahan Sr. (1924-1967), and his wife Margaret Catherine Sweeney Hallahan (1921-2008), on July 29, 1943. He was educated locally, attended St. James High School in Chester, Pennsylvania, where he excelled in sports and graduated from in 1961, and was a U.S. Navy medic, before attending and graduating from Rutgers University in Camden, New Jersey, in 1968, and then attending and graduating from the prestigious Temple University in his native Philadelphia, Pennsylvania, with a Master's Degree in Fine Arts in 1972. He also studied under William Ball at the American Conservatory Theater in San Francisco, California, during the 1970s. Following his education, he pursued an acting career and spent some on the stage in regional theater before moving to Los Angeles, California, and making the transition to appearing in films and on television. After arriving in Los Angeles, California, he began doing some more stage work before actually getting his first roles in film and on television. He made his actual television debut playing the role of 'Brian' in the episode entitled, "The Battles Of Canoga Park," of the crime mystery television series drama, "The Rockford Files," which originally aired on September 30, 1977, and which also starred James Garner, Noah Beery Jr., and Joe Santos, tells the story of Jim Rockford, an easy-going ex-convict turned private investigator, who finds himself in an explosive situation when the gun he hides in his cookie jar is used in a murder. Besides, playing the role of 'Paul Dreyfus' in the action adventure thriller film, "Dante's Peak" (1997), his many other film credits include, "A Death In Canaan" (1978), "Terror Out Of The Sky" (1978), "Nightwing" (1979), "Going In Style" (1979), "Hide In Plain Sight" (1980), "Chicago Story" (1981), "Margin For Murder" (1981), "The Other Victim" (1981), "John Carpenter's The Thing" (1982, He played the role of 'Vance Norris' the ill-fated geologist), "Twilight Zone: The Movie" (1983), "The Star Chamber" (1983), "Allison Sydney Harrison" (1983), "Silkwood" (1983), "Two Of A Kind" (1983), "Kidco" (1984), "Vision Quest" (1985), "Pale Rider" (1985), "A Winner Never Quits" (1986), "J. Edgar Hoover" (1987), "P.K. And The Kid" (1987), "Fatal Beauty" (1987), "True Believer" (1989), "Capone Behind Bars" (1989), "Cast A Deadly Spell" (1991), "A Smile In The Dark" (1991), "Nails" (1992), "Body Of Evidence" (1992), "Warlock: The Armageddon" (1993), "Dave" (1993), "When Love Kills: The Seduction Of John Hearn" (1993), "Roswell" (1994), "Jack Reed: A Search For Justice" (1994), "Executive Decision" (1996), "The Fan" (1996), "The Rich Man's Wife" (1996), "Rolling Thunder" (1996), "Space Jam" (1996), "The Pest" (1997), "Things That Go Bump" (1997), "Ambushed" (1998), and "The Fantastiks" (2000). Besides, playing the role of 'Brian' in the episode entitled, "The Battles Of Canoga Park," of the crime mystery television series drama, "The Rockford Files," which originally aired on September 30, 1977, and which also starred James Garner, Noah Beery Jr., and Joe Santos, tells the story of Jim Rockford, an easy-going ex-convict turned private investigator, who finds himself in an explosive situation when the gun he hides in his cookie jar is used in a murder, and playing the role of 'Captain Charles "Charlie" Devane in 110 episodes of the of the action crime drama television series, "Hunter," which originally aired from 1986 to 1991, and which also starred Fred Dryer and Stefanie Kramer, tells the story of Rick Hunter who is a renegade cop who bends the rules and takes justice into his own hands. Partnered with the equally stunning and rebellious Sgt. Dee Dee McCall, the tough-minded duo set out to crack down on L.A.'s slimiest criminals, his many other television credits include, "Happy Days," "Hawaii Five-O," "Magic Mongo," "The Ted Knight Show," "James At 16," "Dallas," "All In The Family," "Soap," "Family," "The Paper Chase," "Good Times," "The Waltons," "Skag," "Hart To Hart," "Trapper John, M.D." "M*A*S*H," "Riker," "Hill Street Blues," "Bret Maverick," "Lou Grant," "Tales Of The Unexpected," "The Equalizer," "The Law And Harry McGraw," "Great Performances," "ABC Afterschool Specials," "Wings," "Civil Wars," "Picket Fences," "In The Heat Of The Night," "Sirens," "Law & Order," "Wild Palms," "Jack's Place," "Grace Under Fire," "Mad About You," "Murder, She Wrote," "Sweet Justice," "JAG," "Coach," "Sisters," "Almost Perfect," "NYPD Blue," "The Visitor," and "Players." Besides, appearing on stage, and in films, and on television, he was also a talented voice actor and he played the voice roles of 'Macduff,' 'Mr. Jaffe,' and 'Travis Marshall,' in eight episodes of the animated action-adventure television series, "Gargoyles," which originally aired from 1995 to 1996, and the voice roles of 'Travis Marshall,' 'Quarryman,' and 'Janitor,' in three episodes of the animated crime action television series, "Gargoyles: The Goliath Chronicles," which originally aired from 1996 to 1997. His last film role was playing 'Jack Stillman' in the thriller film, "Mind Rage" (2001). The film which was directed by and written for the screen by Mark Allen Michaels, which was also written for the screen by Gwendolyn Gadek, and which also starred Tamara Clatterbuck, Michael Rogue, Gina Gallego, and Max Gail, tells the story of a serial killer's trail of dead bodies which leads to the haunting past of two brothers and one woman's love for both men. The film was released to the general public a few years after his death. For his noted stage work he was awarded the 1986 Drama Logue Award for Outstanding Performance for "Rat in the Skull," at the Mark Taper Too Theatre in Los Angeles, California, the 1986 Los Angeles Drama Critics Circle Award for Distinguished Lead Performance for "Rat in the Skull," at the Mark Taper Forum Too Theatre in Los Angeles, California, the 1987 Drama Logue Award for Outstanding Performance for "Babbitt: a Marriage," at the Mark Taper Forum Theatre in Los Angeles, California, the 1992 Los Angeles Drama Critics Circle Award for Distinguished Lead Performance for "The Kentucky Cycle," in a Center Theatre Group in association with Intiman Theatre Company at the Mark Taper Forum Theatre in Los Angeles, California, the 1992 Drama Logue Award for Outstanding Performance for "The Kentucky Circle" at the Mark Taper Forum Theatre in Los Angeles, California. He also appeared on stage at the Intiman Theatre in Seattle, Washington, with his friend and fellow actor Warner Shook in numerous plays, including three by Brian Friel, five seasons at ACT and the role of 'McMurphy' in the long-running Bay Area production of 'One Flew Over The Cuckoo's Nest,' as well as work at the Old Globe, Los Angeles Theatre Center, South Coast Repertory, the Matrix Theatre, and the Colorado Shakespeare Festival, and in Noel Coward's play, "Tonight at 8:30," at the American Conservatory Theatre in San Francisco, California with Earl Boen in the cast, but unfortunately he never appeared on the Broadway stage in New York City, New York. He also taught high school in New Jersey for a time. In an interview shortly before his death, the actor recalled how fans remember him mostly for his role as 'Vance Norris' in the Sci-Fi mystery horror film, "John Carpenter's The Thing" (1982) and the special make-up effects for the ill-fated geologist. He lived in both Ireland and in Hollywood, California, and divided his time between both places. He had quadruple bypass surgery in 1982 but continued to work. He suffered a sudden heart attack after a car accident in Los Angeles, California, and passed away on November 25, 1997, at the age of 54. A Memorial Mass of Resurrection service was held in his honor at St. Joseph Pro Cathedral in Camden, New Jersey, and a Memorial Service in his honor was held at the old Beverly Canon Theatre in Beverly Hills, California, now demolished, and he was laid to rest at the Old Church Cemetery in Cobh, County Cork, Ireland. He was married twice, first to Frances Elizabeth Widmann Hallahan from December 19, 1970, until they divorced sometime in August of 1974, they had no children together, and second to Barbara Gryboski Hallahan in Los Angeles, California, on May 21, 1983, and they were together until his death on November 25, 1997, and they had two children together, Seamus and Liam. His brother Reverend Kenneth Paul Hallahan is a Roman Catholic Priest in southern New Jersey.