Michael V. deGruy was an American documentary filmmaker specializing in underwater cinematography. His credits include Life in the Freezer, Trials of Life, The Blue Planet and Pacific Abyss. He was also known for his storytelling, including a passionate TED talk about his love of the ocean on the Mission Blue Voyage. His company, Film Crew Inc., specialized in underwater cinematography, filming for the BBC, PBS, National Geographic, and the Discovery Channel. His notable accomplishments include diving beneath thermal vents in both the Atlantic and Pacific oceans. He was a member of many deep sea expeditions and was a part of the team that first filmed the vampire squid and the nautilus.