The main character. A high school boy living in Point Place, Wisconsin and son of Red and Kitty Forman. Is basically a sci-fi nerd but has a wild streak in him that emerges from time to time. Towards the end of the series, he moves to Africa for a year to teach in order to further his career.
"If women don't learn to stand up for themselves, men will always control the world."
The Girl Next Door to Eric's house. Has a fling with Eric that over time turns serious. Their relationship is generally the main focus of the show. Has some ups and downs with Eric and has broken up with him a few times. Was intending to go to college but decided to stay behind to continue her relationship with Eric. After Eric leaves, she starts dating a new guy named Randy.
Informed Attractiveness: While not ugly by any means, she's repeatedly stated to be one of the most attractive girls in town. Except by Jackie, who states that she looks like a trucker. Though this is Jackie we're talking about.
In Vino Veritas: When drunk or in "the circle" she has a tendency to act the loopiest of any of the gang, to downright Cloud Cuckoolander levels.
Troubled kid with a dysfunctional family and rarely attends school. His mother is very loose and he lived alone in a dilapidated house until he moved in with the Formans. Has a tendency to suspect various doings behind the scenes. Is usually the one who brings "the stuff" to the Formans' basement.
Brilliant, but Lazy: He's probably the smartest character on the show, but has no ambition or motivation to do anything but sit around in a basement.
Kitty: Trade you a lollipop for a kiss. Hyde: I don't need that baby crap. (the others leave the room and then Hyde quickly gives her a kiss on the cheek)
Last Name Basis: He's called Hyde by everybody except Kitty and Jackie.
Parental Abandonment: His dad left when he was a kid and his mom was gone by the end of Season 1 - requiring the move-in with the Foremans. His dad returned in Season 3 and Hyde moved in with him, but reversed in Season 4. Off-screen, Hyde's parents got back together, but then left him again.
A pretty-boy with a few crayons short of a box. Often says the weirdest things and believes he's the center of attention when it comes to the ladies. Dated Jackie but his cheating broke them up. Eventually becomes a police officer.
Brilliant, but Lazy: Scored surprisingly well on the SATs. He initially tries to exploit his newfound potential, but gives up when he learns it won't help him get women.
"Look, the sooner you realize I'm a genius, the better off we'll both be."
A bit of an airhead girl who has a tendency to condescend to everyone (strangely, no one is offended by this and tend to ignore it). Has dated both Kelso and Hyde through the course of the series.
One Head Taller: With Kelso (Mila Kunis is 5' 4", Ashton Kutcher is 6' 2).
Parental Abandonment: Her father was arrested and went to jail. Her mother was traveling abroad at the time and was too busy partying to return for months on end. (Jackie and Pam did eventually patch things up, though.) From what we see of Jackie's father before he went to jail, he wasn't a particularly attentive parent either. Red and Kitty are much more like parental figures to her than her own parents.
Wrench Wench: While the others are at career days with their parents, Jackie goes to the Forman house and helps Red in the garage. She demonstrates a real knack for helping fix the car.
Fez (Wilmer Valderrama)
"Whenever I look at naked ladies, I get really tired. Then I get my second wind, and then I want to look at more naked ladies."
A foreign kid who is always trying to get laid. Likes to act campy. Has a crush on Jackie and has made it known numerous times. "Fez" is not his real name, simply a name the guys came up with for him. His real name is something incomprehensible.
Foreign Exchange Student: The name "Fez" is even short for "foreign exchange student", despite the difference in spelling, which the series' official web site describes as "poetic license". His friends know Fez's real name but consider it unpronounceable.
Sweet Tooth: "WHERE'S MY CANDY YOU SON OF A BITCH!?"
The Un Reveal: In one of the last episodes, his best friend from back home comes for a visit. He turns out to be... a different ethnicity and has a different accent (as he "comes from the other side of the island"). The end credits feature the gang quizzing them both about their country, but they only offer vague answers.
Lauren "Laurie" Foreman (Lisa Robin Kelly, Christina Moore)
"I'll do anything for ten dollars."
Eric's older sister, who studies to be a beautician. Seen as a tramp by everyone, including herself (something she is oddly unafraid to admit). Had a relationship with Kelso and is not liked by Kitty, who almost has nothing nice to say to her ever.
Even Evil Has Standards: Became horrified when Eric told her he saw Red and Kitty having sex, and then comforted him and told him it would be alright.
Heel Face Revolving Door: Seems to make a genuine effort to change and be a good person at the end of Season 5. However, in Season 6 (with a new actress in place), she regresses to her old self without explanation.
Long Bus Trip: Season 7, where it was eventually stated she was out of the country. Unlike before, she never came back, which was Lampshaded in the Grand Finale.
Pet the Dog: Comforting Eric after he told her he saw their parents having sex. Due to this, Eric was a complete basket case, and Red and Kitty thought he was on drugs. Since he couldn't bring himself to admit what was really wrong, Laurie bluntly told them "he saw you guys doing it!", then happily (and sincerely) told Eric "I helped!". She and Eric both lampshade this, Eric noting that her being nice is odd and Laurie apologizing for being poor at it as she's not used to it.
Put on a Bus: Halfway through Season 3, she went to Chicago and was no longer in the main cast.
"You just hung vacancy signs on your asses, and my foot is looking for a place to stay!"
The patriarch of the Forman family. A hard-nosed veteran who always seems to be annoyed at something. Worked at a factory until it shut down, at which point he became a supervisor at a department store (and Eric's superior). Eventually has a heart attack, which prompts Eric to stay home from college. When he recovers, he purchases a troubled muffler store. Eric and Red are often at odds but there is an understanding between them when there has to be.
Ass Shove: While he's always threatening to put his foot in someone's ass, he's only ever done it once and that was on Iwo Jima. It's not stated whether it was an enemy or an incompetent comrade (or even superior officer).
Mean Boss: To be fair, the people that work for him do tend to be really stupid.
Not so Above It All: For all his talk, Red is usually willing to be immature too. Examples include feeding the boys a dead possum in revenge for a prank, openly refusing to go to church, bluntly refusing to help people move, being unable to keep a straight face when talking about Eric killing Donna's cat and buying a motorcycle with his first paycheck instead of investing it in the family.
Not So Different: He and Eric are far more similar than either would admit: Both are very sarcastic, both are usually the sanest in Their group of friends and both are genuinely kind and devoted friends beneath Their facades.
Once an Episode: Red threatening to put his foot up someone's ass and/or calling someone a dumbass.
Eric's mother and Red's wife. Attempts to be as cheery as possible, despite her son's constant snarking, her daughter's obvious sluttiness and disdain, and her husband's unending grumpiness. Works as a nurse at a hospital. Seems to suppress a lot of unpleasant thoughts in order to keep her bright personality.
Hidden Depths: During Career Day, Donna is embarrassed by the way Bob behaves at work and all the goofy promotions. He justifies the craziness, however, by saying it's all to pay for Donna's college and ensure a good future. (Except the presence of a monkey, which was for his own amusement.)
Put on a Bus: She leaves Bob in season 4 and moves to Florida. A distraught Donna runs off there as well at the end of the season (with Kelso on tow), returning at the beginning of season 5.
A hippie that maintains a very easy-going attitude with everything he does. Also the owner of a local photography store where Hyde works in once in a while.
Pointy-Haired Boss: He once threatened to fire Hyde if helped a customer
Put on a Bus: When Tommy Chong was arrested by the end of Season 4, Leo obviously disappeared from view. Sometime into Season 5, it was revealed that he had left town (leaving Hyde a goodbye letter) to go back to his family. The Bus Came Back towards the end of Season 7, though, mainly to fulfill the "idiot" role originally held by Kelso before Ashton Kutcher's departure.