The actor who assassinated President Lincoln was John Wilkes Booth.
The correct answer is John Wilkes Booth. He was the actor who assassinated President Lincoln. To arrive at this answer, one could simply be familiar with the historical event or do a search on the internet for information about President Lincoln's assassination. Although the other individuals mentioned were involved in the aftermath of Lincoln's assassination or were political figures of that time, John Wilkes Booth was the actual actor who assassinated President Lincoln.
