It is difficult to realize that celebrities who often graced our television screens once decided to disappear from view. But as it turned out, there are quite a few celebrities who have decided to find work outside of Hollywood. We suggest reading about some of them.

After his time on Malcolm in the Middle, it appears that Sullivan made the decision to leave Hollywood, much like his former co-star Frankie Muniz.

After deciding that Hollywood wasn't for him, Sullivan proceeded to the University of Southern California to further his studies. At the age of 14, he left Malcolm in the Middle, and since choosing to concentrate on his education, he hasn't been on television again. His final performance was in 2006.

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