Dr. Claw's name may have been inspired by Get Smart villain, The Claw.
The title sequence has Inspector Gadget receive a mission from his Chief and go on a mission (with help from Brain and Penny), and finally catch Dr Claw... who turns out to be a decoy with a bomb. The bomb explodes and the title falls down, with an upside-down Gadget forming the I.
When dubbed into French, virtually all of the major cast had their names changed. Penny was renamed Sophie, Brain was renamed Fino, Dr. Claw became Dr. Gang and Chief Quimby became Chief Gonthier.