Tahyna starred in several television series and film blockbusters including X-Men Origins: Wolverine before moving to roles behind the lens focusing on directing and producing.

MacManus grew up in the Sydney beach-side suburb of Cronulla with her Italian father, Dutch mother and younger sister, model Cheyenne Tozzi.

[6] She does the voice acting and her likeness was used for a character named Daina Le Guin in the 2011 sci-fi horror game, Dead Space 2.

In 2017, she began filming her feature documentary Misunderstandings Of Miscarriage (M.u.M) which aims to shatter the silence and grief surrounding pregnancy loss through interviews with women across the world.

The film also includes interviews with obstetricians, gynaecologists, psychologists and endocrinologists whilst simultaneously documenting Tahyna's own traumatic journey through miscarriage.