Cosmo Sinclair
from Great Big Beautiful Life by Emily Henry
Role: Supporting
Margaret's first husband
Readers picture Callum Turner as Cosmo Sinclair in Great Big Beautiful Life by Emily Henry. Other fancast picks include Nicholas Hoult.
Top pick
Callum Turner
Other picks
Nicholas Hoult
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What Cosmo Sinclair looks like
How readers say the book describes them.
Other Great Big Beautiful Life characters
Alice Scott
Anya Taylor-Joy
Hayden Anderson
Nicholas Galitzine
Margaret Ives
Susan Lucci
Cecil Willoughby
Michael Sheen
Laura Ives
Frances McDormand
Jodie
Constance Wu
Gerald Ives
Sam Neill