Lewis is a friend of Brock Lovett. A redhaired, bearded, overweight technician, he wore a black t-shirt with a smiley face shot on the head. He seemed to be a Titanic buff and the "geek" of the team on board the Akademik Mstislav Keldysh. He operates the Keldysh ROVs and guided Snoop Dog into the wreck of the RMS Titanic, controlling it to uncover Caledon Hockley's safe. Lewis demostrated to Rose a 3D animation-simulation of the Titanic sinking, mimicking the sounds of the disaster with his mouth, concluding that it was "cool".