Sylvia Earle is not a film actor; she is a renowned marine biologist, oceanographer, and environmentalist. Known as "Her Deepness," she has dedicated her life to ocean exploration and conservation. She served as the first female chief scientist of the U.S. National Oceanic and Atmospheric Administration and founded Mission Blue, an initiative to protect marine areas. Earle is a National Geographic Explorer-in-Residence and has authored numerous books and scientific publications on marine science.