Stewart gụrụ akwụkwọ na American Academy of Dramatic Arts ma gaa njem nlegharị anya na mpaghara ihe nkiri ruo afọ asaa tupu ya abanye na telivishọn na ọrụ nke Razor Dee, onye DJ na-apụ apụ na oge ikpeazụ nke The New WKRP na Cincinnati na 1992. Stewart nwetara kaadị Screen Actors Guild ya mgbe ọ na-arụ ọrụ maka Hanna-Barbera's Shakey Quakey tour, ma e mechara kwụsị ya maka iwepụ isi uwe ya n'ihu ụmụaka. N'afọ 1996, a tụbara ya na 3rd Rock site na Sun, nke dịgidere ruo oge isii. Na ngosi ahụ, a maara Stewart maka nkà ya na ọchị ọchị na ọdịdị ihu ya. N'oge elu na ewu ewu nke 3rd Rock site na Sun, Stewart pụtara n'ọtụtụ ihe nkiri na dịka onye na-ekwuchitere Clamato beverage.
Ụlọ akwụkwọ American Academy of Dramatic Arts