Naomi Watts, who modeled Betty on Doris Day, Tippi Hedren and Kim Novak, observed that Betty is a thrill-seeker, someone "who finds herself in a world she doesn't belong in and is ready to take on a new identity, even if it's somebody else's".
Naomi Watts, koja je bazirala ulogu na Doris Day, Tippi Hedren i Kim Novak izjavila je da Betty traži uzbuđenje, da je ona netko "tko se nađe u svijetu kojem ne pripada i u kojem je spremna preuzeti novi identitet, čak i ako on pripada nekome drugome".