35 Actors Who Actually Appeared On "That '70s Show" (Some Before They Were Famous)
1.Before his more notable acting roles, Dwayne "The Rock" Johnson guest-starred on That '70s Show as his father, Rocky Johnson, when Red and Eric attend a wrestling match.
Episode he appeared in: Season 1, Episode 15, "That Wrestling Show"
2.Shortly before The Office began in 2005, Jenna Fischer appeared on That '70s Show as Stacy Wanamaker, whom Jackie sees as her idol because she's popular and married to a real estate agent.
Episode she appeared in: Season 7, Episode 12, "Don't Lie to Me"
3.After starring in Big Daddy in 1999, Cole Sprouse portrayed Bobby, a little kid who makes fun of Kelso after he gets lost at Funland.
Episode he appeared in: Season 4, Episode 2, "Eric's Depression"
4.Alongside Cole, Dylan Sprouse played Billy, Bobby's twin brother, who spits in Kelso's ice cream and tortures him too.
Episode he appeared in: Season 4, Episode 2, "Eric's Depression"
5.In her first-ever TV appearance, Amy Adams played Kat Peterson, a popular cheerleader who is secretly hooking up with Hyde.
Episode she appeared in: Season 2, Episode 15, "Burning Down the House"
6.Betty White guest-starred in four episodes as Bea Sigurdson, Kitty's mom and Eric's grandmother.
First episode she appeared in: Season 5, Episode 4, "Heartbreaker"
7.A few months after Mean Girls premiered in 2004, Lindsay Lohan guest-starred on That '70s Show as Danielle, a new client at the hair salon that Fez (Wilmer Valderrama) falls for. At the time, she was also dating Wilmer in real life.
Episode she appeared in: Season 7, Episode 7, "Mother's Little Helper"
8.While starring on 3rd Rock From the Sun and before 10 Things I Hate About You, Joseph Gordon-Levitt guest-starred on That '70s Show as Buddy Morgan, Eric's lab partner who kisses him because he thinks Eric might be gay too.
Episode he appeared in: Season 1, Episode 11, "Eric's Buddy"
9.Following The Fresh Prince of Bel-Air, James Avery guest-starred in three episodes of That '70s Show in 2004. He portrayed Officer Kennedy, who is Kelso's training officer after he joins the police force.
First episode he appeared in: Season 6, Episode 9, "Young Man Blues"
10.While starring on The O.C., Rachel Bilson appeared on That '70s Show as Christy, a rich girl who sits next to Fez at a wedding.
Episode she appeared in: Season 6, Episode 21, "5:15"
11.Bruce Willis guest-starred in an episode as Vic, the head of security at the Playboy Club in Chicago who interviews Kelso for a job. Ashton Kutcher had married Demi Moore, Bruce's ex-wife, just a few months before this episode aired.
Episode he appeared in: Season 8, Episode 4, "Misfire"
12.Two years after Married... With Children ended, Katey Sagal guest-starred on That '70s Show as Hyde's mom, Edna, who is the school's lunch lady. She notably runs off and leaves Hyde, which is why he moves in with the Formans.
Episode she appeared in: Season 1, Episode 18, "The Career Day" (her voice can also be heard in two additional episodes)
13.Seth Green guest-starred in five episodes of That '70s Show during its run. He portrayed Mitch Miller, who briefly joins the gang and has a crush on Donna, which Eric hates. Notably, Seth has worked alongside Mila Kunis on Family Guy since 1999.
First episode he appeared in: Season 5, Episode 17, "The Battle of Evermore"
14.A year after Buffy the Vampire Slayer ended, Alyson Hannigan guest-starred on That '70s Show as Suzy Simpson, a police officer in training who has a crush on Kelso, but Fez has a crush on her.
First episode she appeared in: Season 6, Episode 12, "Sally Simpson"
15.Schitt's Creek star Chris Elliott appeared on That '70s Show as Mr. Bray, Eric's high school guidance counselor, who tells Eric about the teaching program in Africa.
Episode he appeared in: Season 7, Episode 22, "2000 Light Years From Home"
16.Brooke Shields guest-starred in seven episodes as Pamela Burkhart, Jackie's estranged mother, who starts dating Bob, Donna's dad.
First episode she appeared in: Season 6, Episode 15, "Who Are You"
17.Mary Tyler Moore guest-starred in three episodes as Christine St. George, the star of What's Up Wisconsin, who hires Jackie to work for her.
First episode she appeared in: Season 8, Episode 10, "Sweet Lady"
18.Before starring on shows like Drake & Josh and Community, Yvette Nicole Brown appeared on That '70s Show as Sgt. Davis, a police officer who works at the jail where Hyde, Fez, and Randy are being held.
Episode she appeared in: Season 8, Episode 3, "You're My Best Friend"
19.Star Trek: Strange New World actor Ethan Peck appeared in two episodes of That '70s Show as a young Kelso during flashback scenes.
First episode he appeared in: Season 3, Episode 1, "Reefer Madness"
20.Jessica Simpson appeared in three episodes as Annette, who is Kelso's girlfriend from California.
First episode she appeared in: Season 5, Episode 1, "Going to California"
21.The Office star Leslie David Baker appeared on That '70s Show as a janitor working backstage at a Ted Nugent concert that Donna, Eric, Hyde, and Fez attend.
Episode he appeared in: Season 3, Episode 24, "Backstage Pass"
22.Luke Wilson showed up in six episodes as Casey, Kelso's older brother, who briefly dates Donna after she breaks up with Eric.
First episode he appeared in: Season 4, Episode 16, "Donna Dates a Kelso"
23.The Brady Bunch star Barry Williams guest-starred on That '70s Show as Jeff, Kitty and Red's new neighbor who moves in with his husband.
Episode he appeared in: Season 8, Episode 18, "We Will Rock You"
24.Alongside his The Brady Bunch costar, Christopher Knight appeared as Josh, Jeff's husband, who is mistaken for his brother.
Episode he appeared in: Season 8, Episode 18, "We Will Rock You"
25.Buffy the Vampire Slayer and Bring It On star Eliza Dushku portrayed Sarah, who is hired at the radio station where Donna works, and the two clash.
Episode she appeared in: Season 7, Episode 15, "It's All Over Now"
26.Billy Dee Williams, aka Lando Calrissian from Star Wars, showed up on That '70s Show as Pastor Dan, a pastor whom Eric and Donna go to for counseling before they get married.
Episode he appeared in: Season 6, Episode 14, "Baby Don't You Do It"
27.Before starring on Parenthood, Erika Christensen appeared on That '70s Show as Stacey, who works at PriceMart with Red and has a crush on him.
Episode she appeared in: Season 4, Episode 10, "Red and Stacey"
28.Way before he starred as Dan Egan on Veep, Reid Scott played Ted, a resident adviser at the University of Wisconsin who invites Hyde, Eric, Fez, and Kelso to a dorm party.
Episode he appeared in: Season 5, Episode 6, "Over the Hills and Far Away"
29.Music legend Gloria Gaynor guest-starred in an episode as Mrs. Clark, a music teacher who cheers up Fez at prom by singing "I Will Survive."
Episode she appeared in: Season 1, Episode 19, "Prom Night"
30.Jim Gaffigan appeared in seven episodes as Roy Keene, who is Hyde's friend from a Big Brother mentor program he was in as a kid.
First episode he appeared in: Season 5, Episode 18, "Hey Hey What Can I Do"
31.While starring on Sabrina the Teenage Witch, Melissa Joan Hart guest-starred on That '70s Show as Mary, a girl who goes on a blind date with Hyde but ends up going home with Fez.
Episode she appeared in: Season 2, Episode 9, "Eric Gets Suspended"
32.Alongside her Sabrina costar, Lindsay Sloane appeared as Patty, a girl who goes on a blind date with Fez but ends up being interested in Hyde.
First episode she appeared in: Season 2, Episode 9, "Eric Gets Suspended"
33.Before starring on Scrubs and The Middle, Neil Flynn portrayed the bouncer at a hip new club that lets Donna, Hyde, and Fez in, but not Eric.
Episode he appeared in: Season 2, Episode 3, "The Velvet Rope"
34.Groundhog Day, Glee, and One Day at a Time star Stephen Tobolowsky appeared as Laurie's psychology professor, whom she is also sleeping with.
Episode he appeared in: Season 2, Episode 4, "Laurie and the Professor"
35.And finally, Justin Long played Andrew Davis, a friend of Fez's from his home country.
Episode he appeared in: Season 8, Episode 21, "Love of My Life"