Famous birthdays for Aug. 12: Casey Affleck, Cara Delevingne

Aug. 12 (UPI) -- Those born on this date are under the sign of Leo.

They include:

-- American painter Abbott Thayer, credited with noting camouflage in the animal world, in 1849

-- Educator/poet Katharine Lee Bates, who wrote "America the Beautiful," in 1859

-- Christy Mathewson, baseball Hall of Fame pitcher, in 1880

-- Moviemaker Cecil B. DeMille in 1881

-- Norris and Ross McWhirter, who founded the Guinness World Records, in 1925

-- Billionaire/activist George Soros in 1930 (age 87)

-- Author William Goldman in 1931 (age 86)

-- Former national security adviser John Poindexter in 1936 (age 81)

-- Actor George Hamilton in 1939 (age 78)

File Photo by John Angelillo/UPI

-- Singer/songwriter Mark Knopfler in 1949 (age 68)

-- Former French President Francois Hollande in 1954 (age 63)

-- Author Ann Martin ("The Babysitter's Club" series) in 1955 (age 62)

-- Actor Bruce Greenwood in 1956 (age 61)

-- Rapper Sir Mix-a-Lot in 1963 (age 54)

-- Tennis star Pete Sampras in 1971 (age 46)

-- Actor Yvette Nicole Brown in 1971 (age 46)

File Photo by Howard Shen/UPI

-- Comedian Michael Ian Black in 1971 (age 46)

-- Iraqi cleric Moqtada al-Sadr in 1973 (age 43)

-- Actor Casey Affleck in 1975 (age 42)

-- Actor Leah Pipes in 1988 (age 29)

-- Actor and model Cara Delevingne in 1992 (age 25)

File Photo by Christine Chew/UPI