For as long as she's been in the public eye, first as one of the stars of the hit show Suits and now as a soon-to-be member of the royal family, Meghan Markle has worn her hair in a straight and sleek, medium-long style that many would say has become her signature look. Markle is known to sport pretty waves and "Old Hollywood"-style curls on occasion, but typically, the 36-year-old sticks to what she's been doing.