From creating hilarity while spending time in a smoke circle to navigating the timeless struggles of high school, viewers laughed along with the characters of That '70s Show for eight seasons. From the first season starting in 1998 to the eighth season and final season in 2005, the cast aged right along with the residents of Point Place, Wisconson.
How old is the cast of That '70s Show? Topher Grace was 20 years old when he introduced the world to Eric Forman. Grace left the show in its seventh season but returned in the series finale in 2006 which aired just before his 28th birthday. Ashton Kutcher - who went on to marry his co-star Mila Kunis in 2015 - was 20 when the pilot episode first aired in 1998.
Tommy Chong, who played the burnout businessman Leo, was 68 when That '70s Show concluded in 2006. Wilmer Valderrama played Fez from ages 18 to 26.
Which cast members from That '70s Show do you think changed the most during the series' eight-season run? Check out this That '70s Show cast then and now list and vote up the actors whose characters changed the most.
From ages 18 to 26 Wilmer Valderrama played everyone's favorite foreign exchange student, Fez, during all eight seasons of That '70s Show.
Since the series ended, he has been a regular fixture on television appearing in shows like Yo Momma, From Dusk Till Dawn: The Series, and Minority Report.
Birthplace: Miami, Florida, United States of America
A 22-year-old Danny Masterson debuted the sarcastic stoner Steven Hyde in the pilot episode of That '70s Show in 1998. He was a regular source of hilarity throughout all eight seasons.
He reunited with Ashton Kutcher on The Ranch in 2016, but his character was written out of the show in 2017.
Birthplace: Albertson, New York, USA
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Ashton Kutcher, who played the kind of stupid, but kind of sweet Michael Kelso, was 20 years old during the first season of That '70s Show. The former model always looked on point during his seven seasons as a main cast member - and as a special guest in the 8th and final season - though he often sported a variety of hairstyles and fashion choices.
Along with starring in featured films, Kutcher returned to sitcoms to appear in Two and a Half Men (2011-2015) and The Ranch (2016-present). He also has a career as a venture capitalist and invested in notable companies like Skype and Foursquare.
Birthplace: Cedar Rapids, Iowa, United States of America
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Mila Kunis was just 14 when she first portrayed Jackie Burkhart, the girly-girl of the That '70s Show gang. Her look matured along with her character during the series eight-season run.
Following That '70s Show, Kunis became a bonafide film star with roles in Forgetting Sarah Marshall, Extract, and Black Swan. In 2015, she married her former co-star Ashton Kutcher, much to the delight of That '70s Show fans everywhere.
Birthplace: Chernivtsi, Ukraine
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