Answer the following Q with stream of consciousness. Passage: Jesse Wesley Williams (born August 5, 1981) is an American actor, model, and activist, best known for his role as Dr. Jackson Avery on the ABC Television series Grey's Anatomy. He also appeared in the 2013 film Lee Daniels' The Butler as civil rights leader Rev. James Lawson. His other roles have included Holden in The Cabin in the Woods (2012); Officer Eddie Quinlan in Brooklyn's Finest (2009); and Leo, Lena's boyfriend, in the film sequel The Sisterhood of the Traveling Pants 2 (2008).

Question: Based on this passage, who plays jackson avery on grey's anatomy?
To answer the above question, the relevant sentence is: Jesse Wesley Williams (born August 5, 1981) is an American actor, model, and activist, best known for his role as Dr. Jackson Avery on the ABC Television series Grey's Anatomy. Therefore, the final answer is Jesse Wesley Williams.