Chad L. Coleman, who is best known for playing Tyreese on "The Walking Dead" and Cutty on "The Wire," was caught on camera screaming at passengers on a NYC subway train Friday - but what exactly caused the actor's meltdown?

In the almost four-minute video, first obtained by TMZ, Coleman is heard yelling, "I wanna know where my humanitarians are. Yes, I'm Chad L. Coleman. I'm on 'The Wire' and 'The Walking Dead.' I'm not trying to f*cking play no games with you."

While pacing up and down the Downtown 4 express train, the actor continues his rant, yelling, "Yes, I'm an actor... My name is Chad L. Coleman. I'm on 'The Wire' and 'The Walking Dead' and I'm not taking it."

According to TMZ, Coleman said he became upset after he saw a couple on the train trying to identify him and heard a guy say, "No, we don't know that n--r." The actor added that his humanity comments were in reference to Baltimore. Reports added that the actor was completely sober when having a meltdown in the subway.

Coleman spent three seasons on "The Wire," before joining AMC's "The Walking Dead" as Tyreese. Unfortunately, Coleman's character was killed during season five.

People Magazine reported that Coleman's reps have not commented on the incident.