Sickly Sam
From Homestar Runner Wiki
Sickly Sam is the 1936 version of Strong Sad. He is a skeleton wearing a Potate sack. When he's denied what he needs (which is a unwilling mother of his baby), he turns into a muscle bound hunk. His left foot is even sexier than his right. None of the girls seem to hate him. He works out on Tuesdays.
Another 1936 version of Strong Sad, which looks much more similar to the modern Strong Sad, appears being blasted out of a circus tent on Main Page 10. However, since this predates Parsnips-A-Plenty, it is clear that that design was scrapped in favor of Sickly Sam.
