Where their colleagues Major Tungsten and Thunderhead are loud, Major Stanislas P. "Stan" Witwicky, codenamed Sparkplug, and his partner Whirl are quiet. While other human-Autobot teams live for the cacophony of a rolling barrage and the blare of AC/DC, he and his partner carry out their duties by the darkness of a moonless night and the quiet finality of a blade. A keen eye and clear plan are Sparkplug's tools for success.
His Primary Military Speciality is Marine Ground Air Task Force (MGATF) Intelligence Officer, along with a secondary speciality of mechanic.
He's one of Sam Witwicky's uncles that he never talks about!