The key era of television’s dearest character who played as the rascal robber of drug dealers Omar Little on “The Wire”, Michael K. Williams, passed away on Monday.

The 54-year-old actor was found dead by his family inside his Brooklyn apartment, according to the New York City Police, saying his cause of death is probed as a probable drug overdose.

The investigation of his death is now being handled by a medical examiner.

He played the character of Little, considered as the fan-favorite of HBO’s “The Wire”, which aired from 2002 to 2008. Williams’ character was made according to actual figures from Baltimore.

For more than a couple of decades, Williams also played a universal role in other films and has established another classic character as Chalky White in “Boardwalk Empire”, also of HBO, which aired from 2010 to 2014.

He is also present in the “Assassin’s Creed” as well as in the “12 Years a Slave”, and is nominated for an Emmy for his “Lovecraft County” character.

Williams has portrayed the role of Little who is known for being a criminal with a stiff moral code, AP News reported.

“The character of Omar thrusted me into the limelight,” he once shared in 2016 on “The Late Show” with Stephen Colbert. “I had very low self esteem growing up, a high need to be accepted, a corny kid from the projects. So all of a sudden, I’m like, Omar, yo, I’m getting respect from people who probably would have took my lunch money as a kid.”

Williams, who was in the five seasons of “The Wire”, was behind the most remarkable lines in the show. Among these are “a man gotta have a code” and “all in the game yo, all in the game.”