The main villain of the Halloween film series, he killed his sister when he was young and was sent to a psychiatric hospital for the reminder of his natural born life. Years later, he escapes, looking to finish off his sister. Also known as The Shape in the scripts, as he is only a shape in the darkness.Played by: Tony Moran, Will Sandin, Nick Castle (the original film), Dick Warlock, Adam Gunn (II), George P. Wilbur (4 and The Curse), Erik Preston (4), Don Shanks (5), Chris Durand (H20), Brad Loree (Resurrection), Tyler Mane, Draeg Faerch (the remake), Chase Wright Vanek (H2)
The Adjectival Man: Referred to as the "Boogeyman" by the characters until they learn his name. Jamie also calls him "the Nightmare Man" in 4.
Covered with Scars: Following being lit on fire in the second movie, Michael was shown with burn scars on his hands. Though we didn't see it on-screen for ourselves, the implication is that this was the case for his entire body.
The Faceless: Originally, his adult face was seen once in the original film at the end of it. However, as pointed out by James Rolfeas part 2011's Monster Madness, in Halloween 5 you could see it when Jamie asks to see his face, despite the use of shadows. Also, Michael's face is shown numerous times in both the remake and its sequel.
Light Is Not Good: His iconic white mask is eerie and disturbing, and when it's ripped off at the end of the first movie, he looks like any other normal person - certainly not like the monster he had been behaving as.
Made of Iron: At least in the first two films, and in the Zombieverse.
Jerkass: In the original series, he had his moments and was overall a Jerkass With A Heart Of Gold (not withstanding him causing the accidental death of Ben Tramer or him going off the deep end in Revenge). However, in the Zombieverse, he Took a Level in Jerkass following his near death brush with Michael and became an insufferable prick.
Papa Wolf: Though he never has children of his own he was willing to protect 17 year old Laurie at the cost of his own life and young Jamie afterwards.
Properly Paranoid: Others viewed a young Michael as a disturbed boy. Loomis viewed him as a monster just waiting to strike. Guess who was right.
Supporting Leader: He spends most of the original hunting Michael down and gets top billing, but he isn't the lead character.
Take Me Instead: In the fourth movie, after encountering Michael at the diner, Loomis is perfectly willing to try this. Unsurprisingly, Michael doesn't take this offer.
"Don't go to Haddonfield. If you want another victim, take me. But leave those people in peace. Please, Michael?"
What the Hell, Hero?: Loomis seems to get this at least once a movie - usually because of what Michael has done. Not fair in those cases, though, cause Loomis did everything possible to keep Michael locked up.
Laurie Strode is theFinal Girl and main heroine of the series. Originally just a target that he tries to kill, it is later learnt that she is actually Michael's younger sister and Laurie actively tries to stop him.Played by: Jamie Lee Curtis (original series) and Scout Taylor-Compton (Zombieverse)
The Voiceless: She is almost mute in the start of 5, due to the traumatic experiences in the last film. She regains her voice later.
The Man in Black (Dr. Terrence Wynn)
Mysterious man who is seen throughout the fifth film and in the end busts Michael out of jail. He is later revealed to be the leader of the cult of Thorn, which turned Michael into the killer he is now in order to sacrifice his entire family*
The reason for the sacrifice is left unclear due to H20 ignoring past sequels. It's probably for world peace or something
. His real identity is that of Dr. Terrence Wynn, ex-coworker of Dr. Loomis at Smith's Grove.Played by: Robert Phalen (first film), Don Shanks (5) and Mitch Ryan (The Curse)