New suggestion for a not-the-shortest Haleth:
Jessica Lucas. She was in Pompeii and Gotham, and typically acts in horror films (so I am assume these are somewhat physical roles?) Her father is black; her mother is white - she's Canadian.
www.imdb.com
She's 35 and 5'6"

...I'm assuming she's a villain. Her character's name is Tabitha Galavan.
She is also Ariadne in Pompeii:

My problem with actresses born in India is that they tend to be 5'3". Which...doesn't seem right. There's over a billion people on the subcontinent; surely some of them have the build we're interested in for Haleth and an interest in acting!
But for whatever reason, the actresses I find when I look are people like Karen David, who was in Galavant, Once Upon a Time, and Fear the Walking Dead. She's 42 and 5'3".
www.imdb.com
My assumption is that I can find an actor for Haldad in the 5'6"-5'8" range without any difficulty, but that it will be tricky to find an actor for Haldad who is 5'3".
Jessica Lucas. She was in Pompeii and Gotham, and typically acts in horror films (so I am assume these are somewhat physical roles?) Her father is black; her mother is white - she's Canadian.

Jessica Lucas - IMDb
Jessica Lucas, Actress: The Covenant. Jessica Lucas (born September 24th, 1985) is a Canadian actress and singer. She is known for her roles in television, such as Edgemont, Melrose Place (1992) and Cult, and in the films The Covenant (2006), Cloverfield (2008) and 2013's Evil Dead (2013). She...

She's 35 and 5'6"

...I'm assuming she's a villain. Her character's name is Tabitha Galavan.
She is also Ariadne in Pompeii:

My problem with actresses born in India is that they tend to be 5'3". Which...doesn't seem right. There's over a billion people on the subcontinent; surely some of them have the build we're interested in for Haleth and an interest in acting!
But for whatever reason, the actresses I find when I look are people like Karen David, who was in Galavant, Once Upon a Time, and Fear the Walking Dead. She's 42 and 5'3".

Karen David - IMDb
Karen David, Actress: Galavant. Karen David is a multi-hyphenate talent - actress and singer/songwriter - who has found equal diversity in her film, television, stage, and recording career. Born in Shillong, India, in the foothills of the Himalayas; raised in Toronto; and the daughter of a...

My assumption is that I can find an actor for Haldad in the 5'6"-5'8" range without any difficulty, but that it will be tricky to find an actor for Haldad who is 5'3".