One of the best bits on the Key & Peele show had Jordan Peele playing Barack Obama with Keegan-Michael Key as his "anger translator" Luther. It became so popular that Luther appeared with the real President Obama in the 2015 White House Correspondents Dinner.
Alas, Key & Peele is no longer on the air, but Key and Peele came back to allow Luther to express the president's feelings on leaving office. Here it is courtesy of The Daily Show:
(The unbleeped version is here.)