Tharp was a Bolian male serving in Starfleet in the late 24th century. By 2381, Tharp had attained the rank of lieutenant and served as a conn officer aboard the USS Aventine.
Tharp was on duty at the conn when the Aventine answered a distress call from the USS Enterprise-E in the Azure Nebula during the Borg Invasion of 2381. After the two vessels began scouting subspace tunnels emanating from the nebula, Tharp was on duty when both ships traveled to near the Carina Arm and were engaged by Hirogen hunting vessels.
After the Aventine attacked and boarded a Borg scout in order to secure its vinculum in order to control the Borg Collective via former Earth Starfleet Captain Erika Hernandez, Tharp was on duty as they continued to monitor the vessel. After the Borg reasserted control over itself, the vessel made a counterattack; Aventine first officer Sam Bowers ordered Tharp to take evasive pattern sigma in order to give tactical a clear shot at the other side of the Borg ship.