In 2019, Malcolm David Kelley, the actor who played Walt Lloyd in the hit TV show Lost, still remains active and has undergone significant changes. After his departure from Lost in 2006, Kelley successfully transitioned from a child actor to an adult performer, appearing in various television shows and films. He had recurring roles in shows like Saving Grace and Gigantic.

In addition to his acting career, Kelley also pursued a music career. In 2012, he formed the pop duo MKTO with his former Gigantic co-star Tony Oller.

MKTO released their self-titled debut album in 2014, which included the hit single "Classic." The duo eventually split but reunited in 2018, signing a new deal with BMG. They released their latest single, "How Can I Forget," in September 2018.

As for Kelley's appearance, he has visibly aged since his time on Lost. At 26 years old, he looks quite different from his younger portrayal of Walt. Despite the passage of time, Kelley continues to thrive in his career, both as an actor and a musician.