Patty Duke, precisely 5ft 0 (152.4 cm) tall, leveraged her petite stature to embody youthful, vibrant characters throughout her celebrated career. Her breakthrough role in The Miracle Worker (1962) earned her an Academy Award at age 16, with her diminutive height amplifying the intensity of portraying young Helen Keller. On The Patty Duke Show (1963–1966), she masterfully played identical cousins Cathy and Patty Lane, her exact 5ft 0 frame enhancing the show's lighthearted, relatable charm. Duke starred in films like Valley of the Dolls (1967), Billie (1965), and My Sweet Charlie (1970), often noting how her height paired with size 4 shoes and a 95-pound weight allowed her to hold her own among taller co-stars while indulging in fattening foods.