Frankie Muniz
Muniz became super popular after his role in Malcolm in the Middle. When the series ended, the young actor decided to do other things and became a drummer in a rock band — he even drives a race car.
Freddie Prinze Jr.
Everybody remembers this actor from his role in Scooby-Doo 2: Monsters Unleashed which made him very popular. But since getting married to another famous actress, Prinze became a voice actor and stopped appearing in front of cameras.
Kevin Jonas
Kevin Jonas was part of the popular band, Jonas Brothers but since the group disbanded in 2013, Jonas sort of disappeared. He then created a construction company, Jonas Werner, and later the food app, Yood.
Cameron Diaz
Once one of the most popular stars in Hollywood, Cameron Diaz was always in the spotlight. However, she decided to retire in 2014 and has not been in any movies since.
Jack Gleeson
Jack Gleeson rose to the heights of fame after playing the iconic Joffrey Baratheon in the series, Game of Thrones. However, after leaving the show, Gleeson decided to leave his acting career behind and go back to school.
Jamie Lynn Spears
Jamie Lynn Spears became really popular when she starred in the series, Zoey 101 back in 2005. However, her pregnancy at the age of 16 resulted in her having to quit the show. After that, Spears tried to have a career as a country star but it has not been easy for her since.
JoJo
JoJo was the queen of the early 2000s when she took over the world with her chart-topping hits. She kept following her music career and has 4 albums now, but the more recent ones were not as popular as the first 2.
Tobey Maguire
After his huge success in front of cameras as a result of his role in Spider-Man, Maguire is still active in the entertainment business but is now more focused on being a producer.
Raven-Symoné
Raven-Symoné became super popular after starring in the show, That’s So Raven. She was one of the queens of the Disney Channel but when the show ended, Simoné didn’t manage to keep the same level of fame. She would appear in small roles here and there until her hit show made a comeback as Raven’s Home.
Emily Osment
Emily Osment is known for her role in Hannah Montana which made her a kid star. After the show ended, she kept acting, but in smaller roles, and also started a music career.
Brenda Song
Nicole Richie
Nicole Richie used to be super popular thanks to her participation in several reality TV shows. However, after that period, Richie decided to focus on her fashion design career.
David Schwimmer
Although David Schwimmer’s role in Friends remains unforgettable, he also seems to have fallen off the radar. He kept working in the filming industry but only in small movies and also as a director.
Liv Tyler
After appearing in the spotlight after playing a large role in Lord of The Rings, Tyler sort of disappeared off the map. She can now be seen participating in smaller TV shows.
Cuba Gooding Jr.
Cuba Gooding Jr. was once one of the most popular actors back in the ’90s and early ’00s. He kept following his acting career but only landed smaller roles in the 2010s. He also had a few serious personal problems which kept him away from cameras.
Mischa Barton
The eyes of Hollywood were all on Mischa Barton when she starred in the super popular series, The O.C. However, after this, she only appeared in smaller movies and participated in Dancing with the Stars.
On November 30, 2012, at age 26, Muniz was hospitalized after having a transient ischemic attack, and spoke about the experience on Katie.[46][47] He suffered a second attack a year later, on 25 November 2013.[48] He was interviewed in 2017 and asked about his health, and said he has had no issues.[49][50] It was revealed on Dancing with the Stars on October 9, 2017, that he, in fact, has suffered significant memory loss, forgetting he starred in his own shows including Malcolm in the Middle.[51]
https://en.wikipedia.org/wiki/Frankie_Muniz
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