He was a graduate of Starfleet Academy and became a noted and well-respected physicist in the Federation. In the early 2350s, he worked at the Vulcan Science Academy and was a close friend of fellow scientist and Vulcan master Si'tann. In 2353, he had a son with Kelly Yamashiro, named Jaden.
However, in 2354, a warp funnel experiment lost containment and killed both Ba'dos and Yamashiro, leaving Jaden orphaned. Si'tann adopted Jaden as his ward, naming him Sovok. (TNG video game: Hidden Evil)