Coral Peña (born June 1) is an actress who played Mariana Stiles in 24: Legacy. Mariana is a bright self-taught CTU computer analyst, and the cousin of the late Edgar Stiles. The character was referred to as "Gia" in initial press releases. Peña's casting was announced on March 4, 2016. Peña's first screen role was a guest starring role in CBS's Blue Bloods (2015). She also appeared in the short film Drooler (2015).