'Walking Dead' actor Chad L. Coleman seems to have experienced a mild breakdown on an NYC subway train.

The actor was filmed ranting on a variety of social issues which has recently gone viral. In the video he specifically identifies him as the actor on 'The Wire' and 'The Walking Dead,' and makes reference to the Baltimore riots.

"The actor openly admitted that he was a character on The Walking Dead and The Wire and that his name is Chad L. Coleman before pacing back and forth on the subway train and yelling, 'I'm telling you the truth'. He continued on the profanity-filled rant, exhorting passengers to write or record it: 'If you need to write about, if you need to record it, get your phone out. And when you record what I said, tell me what the f- you exposed: nothing but the truth'," writes THR.

It was revealed that the actor became a lot more emotionally charged after overhearing a man say, "no, we don't know that n****r."

His question toward the audience on the subway train was, "where is the humanitarian in you?"

Coleman has since apologized for the incident and extended a special apology for his family and the 'Walking Dead' cast. A rep also confirmed to TMZ that the actor wasn't drunk during his rant.

"The website reported that he said he had a lot of 'built up frustration' because of the situation in Baltimore, where hundreds of people had protested and even rioted over the past week following the death of Freddie Gray, a black man who suffered spinal injuries while in police custody," writes EOnline.