Dr. Samuel James Loomis is a fictional character in the Halloween film series. He is the protagonist of Halloween, Halloween II, Halloween 4: The Return of Michael Myers, Halloween 5: The Revenge of Michael Myers and Halloween: The Curse of Michael Myers. Donald Pleasence plays the character of Dr. Loomis in all five films. Throughout the Halloween franchise, he is depicted as the archenemy to the series' central character and primary antagonist, Michael Myers.

Malcolm McDowell portrays Dr. Loomis in the 2007 reimagining, Halloween and in its sequel Halloween II.

The name "Sam Loomis" is an allusion to John Gavin's character in Alfred Hitchcock's Psycho.

In November 1963, Loomis, a psychiatrist at the Smith's Grove sanitarium, receives the six-year-old Michael Audrey Myers under his care. For an initial six-month-period, Loomis is charged with spending four hours each day in therapy sessions with his patient. The mute and emotionless boy had murdered his sixteen-year-old sister Judith Myers on Halloween night. Loomis is determined to find out what would cause a boy his age to commit such deadly violence. He soon becomes convinced that the boy is not insane, but evil.

Samuel ( /ˈsæm.juː.əl/;Hebrew: שְׁמוּאֶל, Modern Shmu'el Tiberian Šəmûʼēl; Greek: Σαμουήλ Samouēl; Latin: Samvel; صموئيل, Ṣamu’īl; Strong's: Shemuwel) is a leader of ancient Israel in the Books of Samuel in the Hebrew Bible. He is also known as a prophet and is mentioned in the Qur'an.

His status, as viewed by rabbinical literature, is that he was the last of the Hebrew Judges and the first of the major prophets who began to prophesy inside the Land of Israel. He was thus at the cusp between two eras. According to the text of the Books of Samuel, he also anointed the first two kings of the Kingdom of Israel: Saul and David.

Samuel's mother was Hannah and his father was Elkanah. Hannah, at the beginning of the narrative, is barren and childless, like Abraham's wife Sarah. Hannah prays to God for a child. Eli who is sitting at the foot of the doorpost in the sanctuary at Shiloh, sees her apparently mumbling and thinks Hannah is drunk, but is soon assured of her motivation and sobriety. Eli was, according to the Books of Samuel, the name of a priest of Shiloh, and one of the last Israelite Judges before the rule of kings in ancient Israel. He blesses her after she promises the child to God. Subsequently Hannah becomes pregnant; her child is Samuel. After he is weaned, she leaves him in Eli's care.

Rob Zombie (born Robert Bartleh Cummings; January 12, 1965) is an American musician, film director, screenwriter and film producer. He founded the heavy metal band White Zombie and has been nominated three times as a solo artist for the Grammy Award for Best Metal Performance. Zombie's lyrics are noted for their horror and sci-fi themes, and his live shows for their elaborate shock rock theatricality.

Zombie has also established a career as a film director, creating the movies House of 1000 Corpses, The Devil's Rejects, the 2007 remake of Halloween, its sequel, and The Haunted World of El Superbeasto. His next film will be the upcoming The Lords of Salem which is scheduled to premiere in theaters sometime in 2012.

Born in Haverhill, Massachusetts, he was the first of two brothers. His younger brother Michael David Cummings was born on August 25, 1968 and is better known as Spider One, the frontman of alternative metal group Powerman 5000.

Based in New York, White Zombie was originally a noise rock band in the vein of fellow New York band Sonic Youth and Texas experimental punk band Butthole Surfers. White Zombie was known for combining heavy-metal music with driving guitar riffs (as on "Super-Charger Heaven"), overlayed with lyrics heavily influenced by horror films and pseudo-Satanic imagery.

Donald Henry Pleasence, OBE (5 October 1919 – 2 February 1995) was a British actor who achieved more than 200 screen credits during a career which spanned over four decades. Known for his piercing blue eyes and bald head, Pleasence is best remembered for his work in the Halloween and James Bond franchises.

Pleasence was born in Worksop, Nottinghamshire, England, the son of Alice (née Armitage) and Thomas Stanley Pleasence, a railway stationmaster. He was brought up as a strict Methodist in the small village of Grimoldby, Lincolnshire. Pleasence attended Ecclesfield Grammar School, in Sheffield, Yorkshire, and subsequently dropped out to work as a railway clerk, while looking for a job as an actor. During World War II Pleasence was initially a conscientious objector, but later changed his stance and was commissioned into the Royal Air Force, serving with 166 Squadron, RAF Bomber Command. His Avro Lancaster was shot down on 31 August 1944, during a raid on Agenville. He was taken prisoner and placed in a German prisoner-of-war camp, where he produced and acted in plays. He would later play Flight Lt. Colin Blythe in The Great Escape where much of the story takes place inside a German POW camp.

Christopher Walken (/ˈwɔːkən/; born March 31, 1943) is an American stage and screen actor. He has appeared in more than 100 movies and television shows, including The Deer Hunter, Annie Hall, The Prophecy trilogy, The Dogs of War, Sleepy Hollow, Brainstorm, The Dead Zone, A View to a Kill, At Close Range, King of New York, True Romance, Catch Me If You Can, Pulp Fiction, Wedding Crashers, The Rundown, Click, and Hairspray, as well as music videos by recording artists such as Madonna, Journey, Run DMC, The Left Rights and Fatboy Slim.

Walken's films have grossed more than $1.8 billion in the United States. He has also played the main role in the Shakespeare plays Hamlet, Macbeth, Romeo and Juliet, and Coriolanus. He is also a popular guest-host of Saturday Night Live, having hosted 7 times as of April 2008. His most notable roles on the show include record producer Bruce Dickinson (no relation to the singer with the same name) in the "More Cowbell" sketch and his multiple appearances as The Continental.