Who are the look-alikes hired by Abed supposed to be?

In Community Season 3 Episode 12 'Contemporary Impressionists' when Troy returns to his flat and sees Abed sat down with a leg cast he fears the worst and then a

Robin Williams lookalike appears.

Troy then goes to his blanket bedroom and says "Get out!" and four lookalikes appear.

The last two are clearly

Julia Roberts and Tom Cruise

but who are the first two characters (on the left in the picture) supposed to be and what films are they from?