Guignol (also the name of the main character). From the wiki:
Although often thought of as children's entertainment, Guignol's sharp wit and linguistic verve have always been appreciated by adults as well, as shown by the motto of a prominent Lyon troupe: "Guignol amuses children… and witty adults".
I suppose Guignol would be the equivalent of an English "Punch and Judy", although unlike any character in Punch and Judy, Gnafron is a drunk. Leave it to the French.
A translated wiki shows a little of Gnafron's history, and it appears he is the inseparable companion of Guignol.
It must be time for marionettes to make a comeback, as it's an art form that hasn't enjoyed a resurgence for a while. Hmmm.