The Truth About “Craig Tester” – The Engineer Who Deciphered Oak Island’s Biggest Clues

Among the many names that have come to define the popular Sky HISTORY series The Curse of Oak Island, one stands out not for his on-screen presence, but for his steady, behind-the-scenes contributions: Craig Tester. While brothers Rick and Marty Lagina have long been the central figures driving the show’s action, it is Tester who quietly plays a crucial role in the team’s efforts to uncover the mysteries surrounding the infamous island in Nova Scotia. From engineering expertise to helping plan critical excavations, Tester’s work on The Curse of Oak Island has been instrumental in the quest for treasure, though it often flies under the radar.
A Quick Biography of Craig Tester
Craig Tester was born on February 16, 1961, in Glendale, California. His early life saw him pursue an education in mechanical engineering at Michigan Technological University, where he shared a dorm room with future Oak Island co-investor, Marty Lagina. This bond led to a professional partnership that would extend far beyond their time as college roommates. In the 1980s, Tester and Lagina co-founded Terra Energy, a gas and oil company based in Michigan, marking the beginning of their business endeavors together.
The two later ventured into wind energy projects with the creation of Heritage Sustainable Energy, which sought to advance sustainable energy solutions. It was this background in energy and engineering that made Craig Tester an invaluable asset when he joined the hunt for treasure on Oak Island.
Tester and Marty Lagina are also co-owners of Oak Island Tours Inc., a company that offers guided tours around the island, which remains privately owned by the Laginas and their team. The company plays a pivotal role in the operations on Oak Island, and Tester’s involvement further solidifies his deep connection to the island’s enigmatic history.
Craig Tester’s Role on The Curse of Oak Island
Though Craig Tester may not always be the face of The Curse of Oak Island, his influence on the show cannot be overstated. As a producer and consultant, Tester has appeared in nearly 200 episodes of the series since it premiered in 2014. Unlike the more prominent personalities like Rick and Marty Lagina, Tester’s role has been more subdued but no less important. He has provided valuable advice on a variety of fronts, from drilling operations to resistivity testing, lending his expertise to ensure the team’s excavations are executed with precision.
Much of Tester’s work is focused on the technical side of treasure hunting. His engineering background has been a critical asset when it comes to scouting potential locations for digs and ensuring that excavations are planned strategically. He has also played a crucial part in analyzing and interpreting the relics uncovered during excavations, offering insights that have helped the team make connections and further the investigation into the island’s mysterious history.
While he may not have the flashy catchphrases or attention-grabbing moments of other cast members, Tester’s quiet and steady contributions have helped keep the operations running smoothly, allowing the team to push forward despite numerous setbacks. His calm, thoughtful approach to problem-solving has earned him the respect of his fellow team members and viewers alike.

Family Ties: Craig Tester’s Personal Connection to the Island
One of the most poignant aspects of Craig Tester’s time on The Curse of Oak Island has been the involvement of his family, particularly his stepson, Jack Begley. Although Jack and Craig are not biologically related, they have worked side by side in the search for treasure. Jack, often tasked with handling the heavy labor of the digs, has followed in his stepfather’s footsteps by contributing to the treasure hunt. The family dynamic on the island is an endearing aspect of the show, adding a personal touch to the intense mystery that surrounds Oak Island.
Unfortunately, the Tester family has also experienced profound tragedy. In 2017, Craig’s biological son, Drake, passed away at the age of 16. Drake had appeared in several early episodes of The Curse of Oak Island and had been involved in the treasure hunt. His death was caused by a seizure disorder, which he had lived with since birth. The news of Drake’s passing rocked the Oak Island team, but Craig returned to the island to continue his work in his memory. To honor Drake’s legacy, the team named a borehole they planned to drill at the supposed location of the “Money Pit” the “DMT” borehole — using Drake’s initials as a tribute.
Memorable Moments: Craig Tester’s Contributions
While Craig Tester may not have the same level of fanfare as other stars of The Curse of Oak Island, he has had his fair share of memorable moments on the show. One of the most notable moments came during the discovery of a mysterious piece of material in the fifth season, dubbed “The Lot Thickens.” The fragment, thought to be leather with parchment attached, sparked an intriguing theory that Shakespeare’s manuscripts could be buried on Oak Island.
Tester’s expertise in bookbinding led him to suggest that the material found might indeed be connected to early editions of Shakespeare’s plays, or perhaps works attributed to him. This theory, though speculative, has added another layer to the ever-growing list of potential treasures buried on Oak Island, keeping viewers on the edge of their seats as they follow the team’s quest for answers.

The Mystery of Oak Island: Craig Tester’s Ongoing Role
As The Curse of Oak Island continues to captivate audiences with its blend of history, intrigue, and adventure, Craig Tester remains a quiet yet essential part of the show. His technical expertise and steady leadership behind the scenes have made him one of the unsung heroes of the island’s treasure hunt. Though his name may not be as widely recognized as Rick and Marty Lagina’s, his contributions are indispensable in the ongoing search for Oak Island’s long-lost treasure.
Whether it’s helping to interpret clues, ensuring that excavations are properly executed, or simply offering his wisdom to the team, Craig Tester’s role in the mystery of Oak Island continues to unfold. As the show progresses, it’s clear that his commitment to uncovering the truth — and solving the age-old mystery of the island — will remain unwavering. The search may be full of uncertainty, but with Craig Tester’s expertise guiding the way, there’s hope that the answers they seek will one day come to light.