Both at times play the straight man ; often Mortimer will play the exasperated foil to Reeves ' eccentric buffoon .
Reeves will play blankly bemused or annoyed to a manic or hyperactive Mortimer .
Both at times play the straight man ; often Mortimer will play the exasperated foil to Reeves ' eccentric buffoon , or Reeves will play blankly bemused or annoyed to a manic or hyperactive Mortimer .