Padlock (Energon)

Padlock is an Autobot from the Energon portion of the Unicron Trilogy continuity family.

Padlock may well be the most useless autobot ever. Yes, his name is Padlock.

Fiction

Animated continuity

Padlock was a security guard on Cybertron, alongside Wing Dagger. He was aerated by Shockblast, which set Wing Dagger on a quest to avenge him.

From Teletraan I: The Transformers Wiki, a Wikia wiki.