"Malcolm in the Middle" star Erik Per Sullivan, who played Malcolm's youngest brother Dewey, was recently spotted in public for the first time in 18 years. The child star, who is now 33-years-old, per E!

Malcolm in the Middle’ star Erik Per Sullivan was spotted in public for the first time in 18 years after he retired from acting

Sullivan shot to fame all the way back in the year 2000, after being cast as 'Dewey' in the much-loved sit-com Malcolm in the Middle. He appeared on the FOX show for six years alongside his on-screen big brother, Frankie Muniz, who plays the titular character.