Will Mason is a Communications Officer in the Combat Information Center (CIC) aboard the USS Nathan James. His rank is Ensign (O-1), which means he is most likely a recent graduate of the United States Naval Academy.Mason is shown to be hesitant in his duties, specially when questioned about what he saw or heard on the CIC equipment. However, he stands by his impressions and admits when he is unsure. He is one of the crew members assigned to listen to distress calls from around the world in an attempt to get news about any of the crew's loved ones. He is the one who first hears the multiple distress calls from Bertrise, the naturally immune woman stranded on a fishing boat near Jamaica, and brings her to Cmdr. Chandler's and Dr. Rachel Scott's attention. Bertrise's blood is a crucial part in creating a working virus, and one that Dr.Scott had been missing. Mason was pleased to finally met Bertrise once she was brought aboard and developed an affinity for the young woman (maybe even a crush) that continued from hearing her calls. He was seen caring for her after Dr. Scott took some of her blood plasma in an effort to fix the dangerous side effects of the experimental vaccine.Mason was given sonar duties by the newly promoted CIC TAO Lt. Kara Foster, following the death of TAO Barker in Baltimore. He was nervous about his new duties because he had only recently qualified on sonar. Mason was the one who spotted the rogue British Navy sub on sonar, though he was unsure of what he saw at first because the sub disappeared from sonar almost immediately after he spotted it. He insisted that he saw it when questioned by Chandler, which allowed the NJ to stay vigilant and avoid a torpedo attack by the sub. He kept the bridge apprised of the sub's whereabouts as much as he could, given the sub's advanced sound-masking attributes and diving capability. He was also able to identify the sound of nearby dolphins, which gave Chandler the idea for the NJ to mimic that sound in order to evade detection by the British sub. He and Lt. Granderson figured out that the sub was communicating with its land crew by replicator, which gave Officer Nishioka in the CIC the opportunity to blow up the replicator and end communications between the two groups. Show less «