Gaius

Gaius is a thief living in Ylisse and will do any job if paid the right price. He loves sweets and has candy hidden all over his body.

Gaius was hired by Validar to help assassinate Emmeryn, but under the pretense of stealing from the treasury. Upon discovering the true plan of the raid, Gaius talks to Chrom and asks to be hired by him. Though Chrom is not too sure, he accidentally drops a satchel he received from Lissa earlier. When he asks about the contents of the satchel, he is elated to know that they are filled with sweets. He willingly decides to join Chrom's army, as long as he can have that bag of candy and ask Lissa if she has any more.

(Source: Fire Emblem Wikia)