Hotlink was an old Air Command mainstay and a Decepticon Seeker. He was one Starscream's lieutenants, along with Bitstream. He was onetrusted tech engineers in the early days of the war, with a specialty of "mechatronic engineering".
On Trypticon Station, Starscream trusted the pair enough to leave Dark Energon to them while he dealt with more important things, and trusted Hotlink, in particular, enough to give him the task of hiding his communications with Optimus Prime from Megatron. As seekers they apparently survived when Megatron purged Trypticon Station's crew as a lesson to Starscream. He and Bitstream also assisted Starscream in activating the Geosynchronous Energon Bridge.
Hotlink would subsequently leave Cybertron aboard the Nemesis, and was among the crewmembers captured by Quintesson forces when the ship came to the planet Aquatron. Found innocent of crimes against the Quintesson Imperium, Hotlink, along with several other Decepticons and Autobots, was fed to Piranhacons in the city of Hydratron's Hall of Justice.