Frederick is extremely serious and has a no nonsense personality. He is a skeptic which has earned him the nickname "Frederick the Wary" from Chrom. He is very patient, dealing with Lissa's antics and Chrom's reckless behavior to no end, but Frederick cares for Chrom, Lissa, and Emmeryn, feeling the need to protect and serve them at all costs. His services range standard procedures such as preparing their clothes for the next day to comical procedures such as clearing the road ahead of them of rocks and sticks so that they do not trip. Another one of these comical services is when he decides to boost the "morale" of the army by placing naked posters of Chrom in each tent.