Robert James Cassilly Jr. (November 9, 1949 – September 26, 2011) was an American sculptor, entrepreneur, and creative director based in St. Louis, Missouri.

[2] Cassilly graduated from Vianney High School, then earned a bachelor's degree in art from Fontbonne University in St.

[2] The Manhattan Townhouses, located at 4343 Laclede (1984) and 11-23 North Boyle (1985) in the City's Central West End, feature terracotta adorned with turtles and griffins.

[5] He also designed a 12-foot-tall cast stone border fence for Cordage-Nivek's adaptive reuse of the former Dorris Motor Car building (4100 Laclede, 1985).

There, he met sculptor Gail Soliwoda, whose works include the limestone monument at the Myron and Sonya Glassberg Family Conservation Area.

[2] In 1993, they bought a 250,000-square-foot (23,000 m2) complex, which included the International Shoe Building, offices and a 10-story warehouse, for 69 cents per square foot.

"[2] Cassilly's other works include hippopotamus statues installed at Hippo Playground in Manhattan's Riverside Park in 1993.

[3] Cassilly's giraffe statue, which stands at the entrance to the Dallas Zoo, is the tallest sculpture in Texas at 67½ feet tall.

[11][12] Some members of Cassilly's family contested the results of the investigation and hired an independent doctor to review the evidence.