In addition to Leonardo da Vinci, King Agamemnon, and King Tut, the film features other historical figures including Albert Einstein (Mel Brooks), Mona Lisa (Lake Bell), Marie Antoinette (Lauri Fraser), Maximilien de Robespierre (Guillaume Aretos), George Washington, Abraham Lincoln, Bill Clinton, Isaac Newton (all voiced by Jess Harnell), Odysseus (Tom McGrath), Ajax the Lesser (Al Rodrigo) and Spartacus (Walt Dohrn). There are also cameos with no words by Benjamin Franklin, Mahatma Gandhi, William Shakespeare, Ludwig van Beethoven, Vincent van Gogh, the Wright Brothers, Jackie Robinson and baby Moses.

Answer this question based on the passage: who did mel brooks play in mr peabody and sherman? Let's have some stream of consciousness first.
The important part for answering this question is: In addition to Leonardo da Vinci, King Agamemnon, and King Tut, the film features other historical figures including Albert Einstein (Mel Brooks), Mona Lisa (Lake Bell), Marie Antoinette (Lauri Fraser), Maximilien de Robespierre (Guillaume Aretos), George Washington, Abraham Lincoln, Bill Clinton, Isaac Newton (all voiced by Jess Harnell), Odysseus (Tom McGrath), Ajax the Lesser (Al Rodrigo) and Spartacus (Walt Dohrn). So, the answer is Albert Einstein.