But the show aired YEARS ago, and to be fair, we've only really kept up with Bryan Cranston, aka Walter White.
So it might be a little polarising the baby of the family Dewey, is TOTALLY grown up now.
Erik Per Sullivan only joined Instagram in 2016, and we're shook at his appearance now.
Erik hasn't really pursued his acting career since his Malcolm in the Middle days, only voicing Sheldon the Seahorse in 2003's Finding Nemo, and starring in Twelve in 2010.
What a blast from the past!