Steven Yeun – Sebastian
Well, one thing is for sure, while Sebastian (Steven Yeun) was Sheldon’s roommate, he didn’t have one bit of love for him, and that was pretty crazy. Leonard would later become Sheldon’s roommate. After his appearances in The Big Bang Theory, he would cast on The Walking Dead for seven seasons. So, if you ask us, we would say he is doing quite well for himself.
Steven Yeun – Sebastian
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