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Don Knight
★ Acting

Don Knight

1933 – 1997 · Manchester, Lancashire, England, UK · Active 1954–1989

Don Knight, known for his role in Swamp Thing (1982), contributes to the film's blend of horror and science fiction. Set against the backdrop of a murky bayou, Knight embodies the eerie atmosphere that defines this cult classic. His performance adds depth to the narrative, which explores themes of transformation and the clash between nature and science. With a focus on the bizarre and the grotesque, Swamp Thing stands as a testament to the exploitation genre, showcasing Knight's ability to navigate its unique demands.

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Swamp Thing

Swamp Thing

1982 ★ 5.4
as Ritter

After a scientist is mysteriously killed while assisting a top-secret bioengineering project in the swamps of the American South, government worker Alice Cable arrives at the bogs to serve as his replacement. Alice immediately notices that one of the team's swamp sensors has malfunctioned, but her guide, Charlie, introduces her to Harry Ritter, the project supervisor. Charlie tells Ritter a rumor about an evil paramilitary leader named Anton Arcane, who intends to hijack their operation. While Charlie briefs Ritter on the situation, Alice introduces herself to Dr. Linda Holland and her brother, lead scientist Dr. Alec Holland, who takes her on a tour and encourages her to admire the beauty of the swamps. Upon returning to the site, however, Ritter and Charlie scold Alice for distracting Alec. When Alice mentions the broken sensor, Ritter reveals that her predecessor was attempting to repair it when he was killed. After noting the disappearance of one of their workers, the group hears a loud bang and returns to the laboratory, where Linda shows off her recent breakthrough: a glowing, plant-based concoction with explosive properties. Alec then shows Alice a hybrid plant and animal cell, his prized discovery. Sometime later, Alec notices that droplets of Linda's formula spawned rapid plant growth on the surfaces they touched. Overcome with excitement, Alec kisses Alice before sending her to retrieve Ritter in the control room. Although the room is empty, she sees security camera footage of Charlie being shot. Suddenly, a group of paramilitary agents attack her and raid Alec's laboratory. A man resembling Ritter steps forward, but pulls off his mask and reveals himself as Arcane. When Arcane shoots Linda for attempting to escape with the formula, Alec grabs the beaker, but trips, causing the spilled chemicals to set him on fire. He runs outside and dives into the swamp to extinguish the flames as a series of explosions burst from the water. Overnight, Arcane's henchmen destroy the premises and remove all evidence of the team's work. At dawn, a henchman captures Alice and attempts to drown her in the swamp, but a green, humanlike creature drags her ashore and chases two of Arcane's men. Meanwhile, in his mansion, Arcane and his secretary realize that Alec's most recent notebook is missing from the plunder. Alice runs to a nearby gas station to telephone her employers for help; the operator connects to Ritter, who claims to have been called away from the site before the attack. After revealing she stole Alec's last notebook, Alice waits for Ritter's return alongside the young gas station attendant, Jude, but Arcane's men arrive and chase her through the forest. Suddenly, the Swamp Thing appears and again scares the pursuers away, immune to their gunfire. Once alone, Alice attempts to escape the monster, and it reluctantly trudges back into the trees. Jude finds Alice and leads her to a nearby cabin to change clothes. Later, Arcane instructs his men to find Alice, hoping she will lead them to the creature. Alice and Jude boat around the swamp until they reach the dock near the laboratory wreckage. She spies the Swamp Thing crouched among the ruins, holding Linda's locket, and quickly returns to the boat, vowing to bring Alec's final notebook to Washington, D.C. Minutes later, multiple boats of Arcane's men close in on Alice and Jude, luring the creature from its hiding place among the reeds. Despite their bullets and grenades, the Swamp Thing engineers an elaborate boat crash. Although concerned by its intelligence, Arcane orders his lead henchman, Bruno, to continue the search. Moments after instructing Jude to escape with Alec's notebook, Alice hears the boy cry out in distress, but she is kidnapped before she can reply. The Swamp Thing finds Jude's lifeless body and presses a hand against his head, creating a greenish glow which instantly revives him. Regaining consciousness, Jude realizes the creature is a friend of Alice's and gives it the notebook for safekeeping. On Arcane's boat, Alice throws her kidnapper, Ferret, overboard, then dives into the water and swims ashore. Once on land, Alice bumps into the Swamp Thing, which calls out her name. Ferret chops off the Swamp Thing's arm with a machete, but the creature easily snaps Ferret's neck, causing Alice to faint. She awakens in the monster's embrace as it presents her with an orchid plant. The Swamp Thing speaks to her, and she recognizes it as Alec. Later, she strips naked and goes skinny dipping in the water as the monster paces along the banks. After Alice dresses, Arcane's men follow her, capture the Swamp Thing in a net, and retrieve the final notebook. That evening, Arcane invites Alice to a formal dinner party celebrating his duplication of the Hollands’ formula. Moments after giving a toast to prospective immortality, Arcane reveals that he secretly slipped the first dose to Bruno, who begins to convulse. The hulking man's body shrinks to half its size as he grows pointed ears and a misshapen skull. Arcane locks him in a dungeon alongside the Swamp Thing, asking the latter creature why the experiment failed. The Swamp Thing reveals that the formula does not produce strength, but instead amplifies a person's natural qualities, explaining that Bruno's timidity caused his diminished stature. After locking Alice in the dungeon with them, Arcane returns to his study and drinks a glass of the formula. A beam of sunlight emitted through the door re-grows the Swamp Thing's missing arm, allowing the creature to free itself, Alice, and Bruno. Upstairs, Arcane transforms into a hairy, boar like beast, and descends to the dungeons. There, he discovers that his captives have escaped through an underwater tunnel leading back to the swamp. Sometime later, Alice and the Swamp Thing emerge from the water, followed closely by Arcane's monster, which stabs Alice with a sword. The Swamp Thing revives Alice who alerts him to Arcane, whom he ultimately kills. The creature turns to leave, but Alice pleads for him to stay so that she can help him rebuild his work. He refuses, but promises to return to her soon. Moments later, Jude emerges from the trees and embraces her as they watch the Swamp Thing lumber away through the marsh.

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Career Highlights Top 6 by popularity · TMDB

Filmography

82 credits
1980s 11 credits
1989
TV ★ 7.4
1985
Movie ★ 7.3
1984
Murder, She Wrote as Quint Sankey
TV ★ 7.5
1983
The A-Team as Gibbons
TV ★ 7.5
1983
Manimal as Chase's Father (uncredited)
TV ★ 7.3
1982
Movie ★ 5.4
1981
Falcon Crest as Harold Wilkins
TV ★ 5.7
1981
TV ★ 8.1
1980
Movie ★ 5.0
1980
Movie ★ 7.5
1980
Magnum, P.I. as Dan Davies
TV ★ 7.3
1970s 32 credits
1977
Movie ★ 3.3
1977
Movie ★ 6.0
1977
TV ★ 6.2
1976
Movie ★ 6.5
1976
Charlie's Angels as Jack Orwell
TV ★ 6.7
1976
Charlie's Angels as Fredrick Ober
TV ★ 6.7
1975
Movie ★ 6.6
1975
Switch as Rob Evans
TV ★ 6.7
1974
Hog Wild as Red
Movie ★ 8.0
1974
Movie ★ 9.0
1974
Death in Space as Dr. King
Movie ★ 10.0
1974
TV ★ 7.9
1973
Trader Horn as Colonel Sinclair
Movie ★ 5.0
1973
Hitched as Reese
Movie ★ 7.3
1973
Murdock's Gang as Glenn Dixon
Movie ★ 7.5
1973
The Birdmen as Focus Flaherty
Movie ★ 7.7
1973
Kojak as John Hagen
TV ★ 7.1
1973
Kojak as Pourette
TV ★ 7.1
1973
Barnaby Jones as Bertram Fisher
TV ★ 7.0
1972
Ghost Story as Dr. Phillip Pritchard
TV ★ 7.4
1972
Banacek as Isaac Porter
TV ★ 8.5
1972
Kung Fu as Hap Darrow
TV ★ 7.7
1972
Banyon as Rick Madden
TV ★ 8.0
1971
Something Big as Tommy McBride
Movie ★ 5.3
1971
TV ★ 6.7
1971
Columbo as Mike Alexander
TV ★ 8.1
1970
The Hawaiians as Milton Overpeck
Movie ★ 5.5
1970
Too Late the Hero as Pvt. Connolly
Movie ★ 6.4
1970
TV ★ 7.4
1970
TV ★ 7.2
1970
Night Gallery as Tommy Robinson (segment "The Caterpillar")
TV ★ 7.8
1960s 32 credits
1968
Movie ★ 6.0
1968
Hawaii Five-O as Steve Larsen
TV ★ 7.2
1968
TV ★ 5.6
1968
TV ★ 6.0
1968
Hawaii Five-O as Dylan Heyward
TV ★ 7.2
1968
TV ★ 7.2
1968
Hawaii Five-O as Colin Nichols
TV ★ 7.2
1968
Hawaii Five-O as Thayler
TV ★ 7.2
1968
Hawaii Five-O as George Lamb
TV ★ 7.2
1968
It Takes a Thief as Bertie Turner
TV ★ 7.2
1968
TV ★ 7.2
1967
Movie ★ 4.0
1967
Mannix as Paul Gantry / Patrick Gray
TV ★ 6.8
1967
TV ★ 6.3
1966
TV ★ 6.9
1966
The Rat Patrol as Capt. Seitel
TV ★ 7.2
1966
TV ★ 7.6
1966
The Time Tunnel as First Mate Grainger
TV ★ 7.6
1966
Blue Light as Air Marshal Caine
TV ★ 7.0
1965
Run for Your Life as Bartender
TV ★ 7.1
1965
The Big Valley as Sgt. Sean McQuade
TV ★ 6.2
1965
The Big Valley as Sam Jester
TV ★ 6.2
1965
Hogan's Heroes as RAF Lieutenant
TV ★ 7.6
1965
Run for Your Life as Tim O'Rourke
TV ★ 7.1
1965
TV ★ 7.1
1964
Bewitched as Robbie
TV ★ 7.9
1964
TV ★ 7.7
1962
Combat! as German Sgt.
TV ★ 7.8
1962
Combat! as British Soldier
TV ★ 7.8
1962
TV ★ 6.5
1962
Combat! as Aussie officer (uncredited)
TV ★ 7.8
1962
The Virginian as Cal Hobson
TV ★ 6.5
1950s 6 credits
1959
Bonanza as Bristol Toby
TV ★ 7.5
1959
Bonanza as Pat Clayton
TV ★ 7.5
1959
Bonanza as Tim Riley
TV ★ 7.5
1954
TV ★ 7.9
1954
TV ★ 7.9
1954
TV ★ 7.9
Crew Credits
1980s 1 credit
1987
Venus Flytrap Director of Photography
Movie ★ 5.2