|Position|| Lieutenant Commander
Lieutenant Commander Gruhn Helkara was a Zakdorn male serving in Starfleet in the late 24th century. By 2381, Helkara was serving as Chief Science Officer and second officer on the USS Aventine.
When the Aventine responded to a distress call from the USS Enterprise-E in the Azure Nebula during the Borg Invasion of 2381, Helkara came up with the idea to utilize a super-low frequency subspace band break through the Borg's subspace communication jamming, an idea that was frequently used by the Klingon Defense Force. He then had to reconfigure their sensors to operate in tandem with the Enterprise, as their targeting computer was offline. After the two vessels began scouting the subspace tunnels emanating from the nebula, one of the tunnels terminated near the Carina Arm where both ships were attacked and boarded by Hirogen hunters. To prevent computer access, Helkara was ordered by Captain Ezri Dax to lock down the engineering computer core. The ships were successful in repelling their boarders, and as they returned to the nebula, Helkara noted the collapse of the tunnels as they passed through, closing behind them.