The fifth and final season of HBO's prohibition drama Boardwalk Empire returns this fall, and the wait has some people a little on edge.

'Vendetta' For Chalky White On Season 5 Of 'Boardwalk Empire'

With filming underway, actor Michael K. Williams posted a photo on Instagram yesterday of himself in costume, sporting a brown vest and blue tie. The actor's recent beard is also gone. "CHALKYS BACK!!!!!!" read the caption, much to the delight of fans who continue to post responses and favorite the image to voice their excitement.

Actor Vincent Piazza Reveals Favorite 'Boardwalk Empire' Prop

Williams remains highly responsive to his online fan base, regularly reposting fan drawings sent in via Twitter of his most popular characters, including Omar from HBO's The Wire and Chalky White from Boardwalk Empire.

With the anything-can-happen mentality of the prohibition series, along with the fact that it is the program's last season, some fans are naturally worried about the fate of their favorite characters.

"If Chalky dies I'm running thru the streets of NYC, NAKED (seriously)" wrote @superstar08 on Twitter this past week. Williams responded nonchalantly to the fear and has urged fans not to worry too ardently, though he has yet to comment on the fate of his character. He has confirmed that Boardwalk Empire will be moving a few years ahead into the 1930s this season. It has yet to be determined how The Great Depression will influence his character, who is still reeling from the event of season four.

Boardwalk Empire returns to HBO Fall 2014.

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Boardwalk Empire, Hbo, Television