It appears that the tirade was not addressed at black cast members Donald Glover or Yvette Nicole Brown. People close to the situation say that Chase had been increasingly frustrated and uncomfortable with the direction of his character, Pierce, who is a bigot. After getting fed more lines he found offensive during a scene yesterday, I hear he snapped and launched the tirade, airing his frustration and suggesting that the way things with Pierce are going, he may next be asked to call Troy (Glover) or Shirley (Brown) the N-word. I hear the outburst upset the cast. Chase later apologized. The racial content of his tirade does appear out of character for Chase, who once marched in the civil rights movement, but the blowup itself is not.
I caught all 4 seasons on Hulu and even though it got worse by season, I'm hype we're getting some new episodes....especially after I thought the show was done 
