Tatjana Šimić was born on 9 June 1963 in Zagreb and grew up in a family of Croatian heritage. Early on, she discovered a passion for the performing arts, which eventually brought her to the Netherlands, where she found her creative home.

Her big breakthrough came with the role of the spirited Kees in the Dutch television and film series Family Flodder. With her magnetic presence, she quickly won over millions of viewers and secured her place in show business.