Elias was raised by his parent's in the South East of England. At the age of 18, he joined Starfleet Academy. Wren excelled at the academy. He chose Flight Control and Operations as he’s field of choice. After the Academy, Walker was assigned to the USS Atreus, where he served as helmsman for 3 years until war broke out with the Dominion. The Atreus was one of the first ships destroyed by the Dominion as they began to cleanse Cardassian and surrounding space. Thankfully, Elias and a handful of other managed to survive. After they were rescued and taken back to Deep space nine where he awaited new orders.