Clank

As the robotic counterpart of the hero duo, Clank is the more intelligent of the two and is not much of a fighter.

Creation
Clank was originally created in a facotry as a destroyer for assisting Chairman Drek however he turned out somewhat smaller and with more of a coinscience and escaped to seek help from someone,to which he met Ratchet. He has many gadgets imbedded into him aswell as the ability to transform into a Giant Clank and fight off large monsters. It is later revealed clank was not a mistake but rather created by the Factory Motherboard with hopes he would prevent Chairman Drek and his plans. After defeating Drek alongside Ratchet, Clank went on to work in Metropolis in a distant galaxy, however when Ratchet started pursuing the theif of the stolen Proto-Pet he was kidnapped and tortured by the theif to try and convince Ratchet to back off. After another completed mission and saved galaxy Clank was offered a movie carear as Agent Clank. After becoming a famous galactic hero somewhat like James Bond Clank was pulled into another adventure with Clank to stop Dr.Nefarius. He was again kidnapped, this time by Courtney Gears, where Dr.Nefarius attempted to convince Clank to join his forces, quite posotive he was the real Agent Clank. After being declined Nefarius trapped Clank and sent a counter part, Klunk, out to spy on Ratchet. After being freed by Ratchet after battle with Giant Klunk Clank went on to destroy to Bio-Obliterator and save the planet-or so it seemed.

Ratchet & Clank
Clank is and idealist. Well, he's a robot, isn't he? When Chairman Drek's army processing plant spewed out Clank, questions where asked. Why did the computer malfunction? How did rebooting the process create such a brainy robot? Who pushed the red button? Questions that not even Clank could answer .But an afternoon's detective work yields more than enough reason for Clank to realise he was meant to be part of an evil scheme to bring the galaxy to it's knees. Clank's conscience overwhelms him and being the overly alalytical ,honest, responcible robot he is, he jumps into the nearest escape rocket and jets out of the factory and into an adventure beyond the stars. The Ratchet & Clank manuel

Ratchet & Clank: Going Commado
While small in size and stature, Clank can handle himself on the battlefield. Still equipped with the mulitple backpack enhancments made by the fine craftsmen of the Roboshack locations, Clank can help Ratchet reach high places, leap large gaps and, on occasions, venture out on his own for a little "me" time. Clank can also enlist the aid of Megacorp Microbots. These robots operate on the same frequency as Clank,and can help him attack enemies, build bridges and even lift heavy items. Clank can command Microbots using the Microbot Command Menu. To access the menu while playing as Clank, hold down the triangle button and then choose a command using the left analog stick or directional button. from The Ratchet & Clank: Going Commado Manuel

Facts

 * Clank is voiced by a man named David Kaye, who also voices a character named Blondie.
 * Clank seems to have had a love romance with a local robot in Ratchet & Clank: Going Commado however she is no-where to be seen in Ratchet and Clank 3:Up Your Arsenal.Perhaps it wasn't meant to be.