Stuntwing is formerly one of Soundwave's Mini-Con subordinates.
In King of the Hill (Part 1), Stuntwing spied on Bumblebee's team as they tangled with Heatseeker in Grand Valley.
In King of the Hill (Part 2), when it looked like the Stunticon was getting the better of the Autobots, Stuntwing linked with Bumblebee, giving him a flight mode. The Mini-Con remained silent under Bumblebee's questioning, however, and after an explosion caused the Bee Team to merge into one robot, Stuntwing made off with Bumblebee's Decepticon Hunter. He later opened a GroundBridge portal and headed through it to rendezvous with Soundwave.
In Prisoner Principles, when Steeljaw stole a set of nuclear fuel rods, Stuntwing emerged from a Shadowzone bridge portal to retrieve it on behalf of Soundwave, only to be brushed off by Steeljaw, the Decepticon insisting on a personal delivery and sending Stuntwing back through the portal empty-handed.