It is customary for the Lord-Lieutenant to appoint a number of cadets drawn from a variety of cadet units within Cambridgeshire. This appointment, which is for one year, is the highest accolade possible during a cadet’s career. The cadets role is to assist the Lord-Lieutenant or her deputies at ceremonial and other events around the County. The cadets for 2020/21 are:
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| Cadet Sgt Jack Badcock Cambs ACF | Cadet Corporal Rhyder Cameron-Wickes Cambs ACF | Cadet Sgt Charlie Rice Cambs ACF |
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| Cadet Sgt Noah Sanderson Kimbolton School CCF | Cadet Flight Sgt Lauren Thompson March ATC |