The Reddit user pointed out that “the team is trying really hard to connect the (Templars) and Masons to this mystery treasure. If the (Templars)/Masons did bury the treasure, they know where it is.” The user then went on to suggest that Oak Island historian and cast member Charles Barkhouse seems the most likely candidate for the mole, since he was “part of a nucleus team of Masons that initially took part in this project.”
Barkhouse has been a member of the cast since Season 1, and his vast knowledge of the island’s history — as well as the legend and lore surrounding the treasure — has fueled and helped direct brothers Rick and Marty Lagina’s excavations numerous times and in multiple ways. And yet, as the Reddit theorist points out, “He is never decisive in his explanations and never forthcoming with information.” Moreover, “Whenever someone presents a theory, he sits smiling and nodding his head, occasionally wording an approval … His expression only changes when the theory at hand involves the Templar/Mason connection.”
This isn’t the first time a fan has pointed to Barkhouse as potential threat to the team’s success. Two years prior to Merdinus-Legendarius’s proposal, another Reddit user responded to the suggestion from u/Bikpla that Barkhouse was “a secret Templar trying to lead Rick Marty and the boys astray” by saying they didn’t trust the Oak Island historian and tour guide either.
“I always feel Barkhouse is messing with us,” they wrote, adding that, “It’s like he knows more than he lets on.” Unfortunately, as a number of fans pointed out in response to the theory’s more recent reemergence, there are a few problems with this line of thinking.