Lieutnant (later Oberleutnant) Hubert Gruber is one of the main German characters in 'Allo 'Allo!. From the very beginning of the series he shows a strong affection to René Artois, which becomes a running gang during the whole series. He is assigned as an ADC (aide-de-camp) to General Von Klinkerhoffen and later as an unoffical assistant to Colonel Von Strohm when Captain Hans Geering going missing. He lives at the Chateau.