Last year, Netflix announced that it had greenlit a spin-off of classic Fox sitcom That '70s Show. Titled That '90s Show, many of the show's original cast members are set to reprise their roles for the new series, which is tipped to land on the streaming platform later this year.

That '70s Show ran for eight seasons between 1998 and 2006, and followed the story of a group of teenagers living in the fictional town of Point Place, Wisconsin in the late 1970s.

It helped launch the careers of several big-name stars, including the likes of Ashton Kutcher and Mila Kunis. Read on to discover who's got the most in the bank thanks to the classic comedy. All dollar amounts are in US dollars.

Debra Jo Rupp played doting mother Kitty Forman throughout all eight seasons of That '70s Show. As one of the older cast members, Rupp was already an established actress with a long list of credits to her name before joining the sitcom. 

Rupp primarily acted on the stage, starring in the likes of The Time of the Cuckoo and Broadway’s Cat on a Hot Tin Roof. She landed her first movie role in 1988, playing shy secretary Miss Patterson in the Tom Hanks-led comedy Big. 

Her TV credits prior to That '70s Show included guest roles in the sitcom Blossom and the medical drama ER, as well as a small part as Alice Knight Buffay in Friends. 

After That '70s Show wrapped up, Rupp continued to grace the stage and screen. In 2012, she starred as sex therapist Ruth Westheimer in the off-Broadway biopic Becoming Dr. Ruth, which earned her a Drama Desk Award nomination for Outstanding Solo Performance.

Her screen credits include a vocal role in the Disney Buddies movie franchise, and she also landed a recurring part in family sitcom The Ranch, which saw her reunite with her former That '70s Show co-stars Ashton Kutcher and Danny Masterson. Most recently, she appeared in the hit Disney+ Marvel series WandaVision, and she’s set to reprise the role of Kitty Forman in That '90s Show later this year. 

Rupp, who's now in her 70s, is estimated to have garnered a $5 million (£4.2m) fortune thanks to her long and lucrative acting career.

Don Stark played the bumbling Bob Pinciotti throughout the entire run of That '70s Show. As one of the older generation of cast members, Stark already boasted a decade-spanning acting career before landing the gig. 

While Bob is his best-known role, Stark's prior movie credits are nothing to be sniffed at. His career began back in 1975 with the action flick Switchblade Sisters, and he went on to land starring roles in the likes of comedy Peggy Sue Got Married (1986), Revenge of the Red Baron (1994), and Star Trek: First Contact (1996).

Now in his late 60s, Stark’s career has slowed down in recent years. However, he still landed a few notable roles after That '70s Show wrapped up, with parts in Disney flick John Carter (2012) and Woody Allen's comedy-drama Café Society (2016). 

More recently, Stark had a recurring role in the Hulu comedy series Dollface, although the show was axed by the streaming platform in May 2022 despite decent reviews. It's unknown if Stark will return for spin-off That '90s Show, so fans will just have to wait and see.

It's estimated that the actor currently has between $5 million (£4.2m) and $6 million (£5m) in the bank.

Ageing hippie Leo Chingkwake was played by none other than Tommy Chong. The fan-favourite character appeared in 65 episodes of That '70s Show between seasons two and eight.

Chong was already something of a cultural icon by the time he joined the sitcom, first finding fame in the 1970s as one half of the Cheech and Chong comedy duo. Along with Cheech Marin, the pair released many stoner-inspired comedy albums and feature films, including Up in Smoke (1978) and Still Smokin' (1983), with the latter receiving mixed reviews.

Though Cheech and Chong briefly split in the 1980s due to creative differences, the comedy duo later reunited and continue to work together today. Cheech & Chong’s Animated Movie! hit screens in 2013, with Chong writing and starring in the film.

Chong has achieved legendary status over the years and has made guest appearances in shows including WWE Raw, The Simpsons, and Trailer Park Boys. He also competed in the 2014 season of Dancing with the Stars, as well as the 2019 season of The Masked Singer.

It’s unknown if Chong will be reprising Leo in That '90s Show. Either way, the star is estimated to be worth a cool $8 million (£6.7m) – and some sources even claim he might even have $20 million (£16.8m) in the bank.

Danny Masterson played tough guy Steven Hyde in That '70s Show and starred in all eight seasons. Masterson began modelling and acting in commercials at the age of four and had appeared in over 100 TV adverts by the time he was 16.

In the early 1990s, Masterson starred in family-friendly flick Beethoven’s 2nd and also landed a recurring role in Chuck Lorre’s sitcom Cybil.

He almost missed out on his career-making part in That '70s Show as the casting director was worried that Masterson, by then in his early 20s, was too old to play a teen. However, a stand-out audition saw him land the coveted gig, despite the earlier reservations.

After That '70s Show finished, Masterson went on to appear in a variety of movies, including Yes Man (2008) and the superhero comedy Alter Egos (2012). He also starred in the Netflix sitcom The Ranch between 2016 and 2018 alongside Ashton Kutcher and Debra Jo Rupp, playing Jameson "Rooster" Bennett.

However, Masterson was fired from the Netflix series when four women filed sexual assault allegations against him in 2017. Two years later, the same women filed a stalking and harassment lawsuit against Masterson and the Church of Scientology, which he is a member of. Masterson has pleaded "not guilty" to the charges and will stand trial later this year. He won't be returning to That '90s Show.

His net worth is estimated to be $8 million (£6.7m), though some sources suggest it’s closer to $22 million (£18.4m).

Kurtwood Smith played the part of war veteran Red Forman in That ‘70s Show and was a main character for the sitcom's entire run. Like his fellow older cast members, Smith had racked up a seriously impressive filmography before landing the role of Red.

His silver screen credits include a string of big hits like RoboCop (1987), Rambo III (1988), Dead Poets Society (1989), and Star Trek VI: The Undiscovered Country (1991). He was also busy with TV roles, appearing in shows such as The A-Team, Stir Crazy, and The X-Files.

Since That '70s Show ended, Smith has lent his vocal talents to a range of TV shows, including Batman Beyond, Family Guy, Rick and Morty, and F is for Family. He also landed a recurring role in Marvel’s Agent Carter between 2015 and 2016, as well as a regular part in – you guessed it – The Ranch, which he starred in between 2017 and 2020. 

More recently, Smith appeared in the Hulu series The Dropout, which explores the story of disgraced Theranos founder Elizabeth Holmes. Later this year, he’s set to reprise his role as Red in That '90s Show.

Now in his late 70s, Smith is said to be worth somewhere between $10 million (£8.4m) and $12 million (£10.1m). 

Laura Prepon played tomboy Donna Pinciotti in all 200 episodes of That '70s Show, with the sitcom signifying a big break for the former model.

Before landing her role as Donna, newcomer Prepon’s only acting credit was in the web series soap opera They Go On, and she’d also appeared as an extra in the 1998 teen fantasy-comedy movie Pleasantville.

Today, Prepon is best known for her role in the Emmy-winning prison dramedy Orange Is the New Black, which she starred in between 2013 and 2019. Her performance as jailbird Alex Vause earned Prepon a Satellite Award for Best Supporting Actress. 

Her notable film credits include the comedy-drama Lay the Favorite (2012) as well as the gripping The Girl on the Train (2016). Prepon is set to reprise her role as Donna in a guest-star capacity in That '90s Show later this year.

The star has an estimated $12 million (£10.1m) in the bank.

Topher Grace shot to fame playing nerdy protagonist Eric Forman in That '70s Show. The sitcom was his breakout role; he'd only acted in high school stage plays before landing the part. 

Grace played Eric for seven seasons before leaving the show to pursue a silver screen career. While starring in the sitcom, he appeared in the likes of Traffic (2000), Ocean's Eleven (2001), and Win a Date with Tad Hamilton!

However, That '70s Show's demanding schedule limited the number of movie roles he could take. After leaving, Grace did briefly reprise the character of Eric as a guest star in the sitcom's final season.

Grace’s biggest role after leaving That '70s Show was arguably the villainous Venom in 2007's Spider-Man 3. Other notable movie credits include sci-fi epic Interstellar (2014), Spike Lee’s 2018 crime drama BlacKkKlansman, and the political comedy Irresistible (2020).

He's also had a range of TV roles, including starring parts in an episode of Netflix's dystopian anthology series Black Mirror, as well as an episode of 2020 The Twilight Zone reboot. Grace is currently playing the lead in ABC sitcom Home Economics, and is confirmed to return as Eric in a guest-star capacity for That '90s Show later this year.

It’s estimated that the star has a healthy $14 million (£11.8m) in the bank.

Wilmer Valderrama played foreign exchange student Fez and was a main character throughout all eight seasons of That '70s Show.

Valderrama's first ever acting gig was in a Spanish telephone commercial. In the late 1990s, he started to branch out into bigger roles, appearing in the CBS drama miniseries Four Corners, before finding fame as Fez in the hit sitcom.

Since That '70s Show finished, Valderrama has gone on to enjoy a modest movie career, appearing in thriller Columbus Day (2008), Larry Crowne (2011), and the crime-drama The Adderall Diaries (2016).

He also had a starring role in TV show From Dusk Till Dawn: the Series between 2014 and 2016, with the show based on the Robert Rodriguez's cult 1996 movie that starred George Clooney and Quentin Tarantino.

More recently, Valderrama voiced the character of Agustín Madrigal in Disney's smash-hit movie Encanto. Later this year, he'll reprise his role as Fez in That '90s Show.

Valderrama's fortune reportedly sits somewhere between $18 million (£15.2m) and $20 million (£16.9m).

Mila Kunis played spoilt rich kid Jackie in That '70s Show. Despite auditions only being open to those aged 18 or over, Kunis was just 14 years old when she landed the role. She cunningly told producers she'd be 18 on her birthday, but never specified which one. Though her deception was later uncovered, she got to keep the role on the merit of her talent.

Before the hit sitcom launched her to fame, Kunis had had small parts in soap opera Days of Our Lives and the drama series 7th Heaven. She'd also dabbled with film, playing a younger version of Angelina Jolie's titular character in the biopic Gia. 

Kunis is also famed for her role as Meg Griffin in the animated sitcom Family Guy, and has voiced the character since 1999. 

Outside of That '70s Show, Kunis has established herself as a bona fide movie star, gaining critical acclaim for her role in the 2010 psychological thriller Black Swan, which earned her a Golden Globe nomination for Best Supporting Actress.

Kunis also has a string of comedy hits under her belt, including Friends with Benefits (2011), Ted (2012), and Bad Moms (2016). She's set to reprise the role of Jackie as a guest star in That '90s Show later this year.

Kunis is famously married to her That '70s Show co-star Ashton Kutcher and her independent fortune stands at a hefty $75 million (£63.2m).

It's safe to say that Ashton Kutcher easily takes the top spot as the richest That '70s Show alum. The star got his big break playing lovable goofball Michael Kelso and was a main cast member for all eight seasons of the show.

Kelso was actually Kutcher's first ever acting gig and before he got the part he worked as a model, appearing in ads for Calvin Klein. While starring in the show, he landed a number of other lucrative opportunities, including a starring role in the 2000 comedy classic Dude, Where's My Car? and the hosting slot on iconic prank show Punk'd, which he also created and produced.

Kutcher became That '70s Show's breakout star, making a name for himself in the comedy genre by starring in a string of funny flicks like What Happens in Vegas (2008), Killers (2010), and No Strings Attached (2011). He's also sunk his teeth into more dramatic roles, including The Butterfly Effect (2004) and the 2013 biopic Jobs, in which he played the infamous Apple founder.

He returned to the small screen in 2011 when he joined sitcom Two and a Half Men, and more recently starred in Netflix's The Ranch.

And Kutcher doesn't just rely on his acting career to boost his fortune. A savvy venture capitalist, he's the co-founder of A-Grade Investments and has poured cash into a range of start-ups. His staggering fortune is tipped to be worth around $200 million (£168.5m) – who's laughing now?

Now discover how much the cast of Cheers are worth today