Actor Hong Chau (Downsizing, Inherent Vice) has boarded HBO's upcoming television adaptation of Watchmen in a key role.

At this time, HBO has not officially revealed who exactly Chau will be playing, but Deadline's sources tell them that she will be taking on the role of a brand-new character named Lady T., who is Vietnamese.

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Chau, who is herself of Vietnamese descent, also recently played the Vietnamese character Ngoc Lan Tran in the 2017 film Downsizing, bagging Golden Globe and SAG Award nominations in the process, as well as steadfastly defending the character from what she felt was misplaced criticism regarding the tastefulness of her portrayal.

Moreover, it will certainly be interesting to see just how the mysterious Lady T.'s Vietnamese background comes into play. The Vietnam War was a crucial point in the timelines of both the original Watchmen graphic novel and the 2009 film adaptation, which were set in the 1980s. However, seeing as how HBO's series will take place in modern times, it's uncertain how the infamous conflict plays into this new incarnation of the Watchmen universe.

It is also currently unclear if Chau's Lady T. really is an all-new character, or if that is simply a codename being used by HBO. Notably, there is a character in Watchmen lore named Twilight Lady. However, while it is a possibility that the two are one in the same, they could very well be entirely different.

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Developed by Damon Lindelof, HBO's Watchmen stars Jeremy Irons, Regina King, Don Johnson, Tim Blake Nelson, Louis Gossett Jr., Yahya Abdul-Mateen II, Tom Mison, James Wolk, Adelaide Clemens, Andrew Howard, Frances Fisher, Jacob Ming-Trent, Sara Vickers, Dylan Schombing, Lily Rose Smith and Adelynn Spoon. The series is expected to premiere on HBO sometime in 2019.