Before Jean Smart had seven Emmys, she was credited as a Woman Bather in Before and After. You can totally recognize her voice when she was 27 making her on-camera debut in that 1987 television movie of the week.
Before Byron Allen had to pay for people to watch his shows like Comic Unleashed, Johnny Carson gave him his big break on The Tonight Show. He looks the same now as he did when he was 18 during that 1979 episode.
Before Donna Mills was celebrating her 60th year as an actress, she got her start on the daytime one The Secret Storm. She looks the same now as she did when she was 25 in that 1966 episode.
Before Michael B. Jordan played a boxer in Creed, he had already done that in Law & Order: Criminal Intent. He looks the same now as he did when he was 23 in that 2010 episode.