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.
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
<---this isn't me either