Complex sentence: Additionally, he is known for his role as Mr. Universe in the 2005 film "Serenity" and played Michael the AV geek in "10 Things I Hate About You".
Split into simpler sentences: Additionally, he is known for his role as Mr. Universe in the 2005 film "Serenity". He also played Michael, the AV geek, in "10 Things I Hate About You".