Decius Caecilius Metellus the Younger is a member of a large and powerful noble plebeian family in Rome. He is something of a black sheep, especially in the eyes of his generally disapproving father, DCM the Elder, who is also his patron. His mother, Servilia, died when he was quite young. Born in the early 90s BCE (dates are a bit approximate), he lives through the turbulent years of the ending of the republic and into the age of Augustus.
The stories are written as memoirs towards the end of his long life. Cynical though he often is, Decius Caecilius also has a certain irrepressible cheer. He loves his position, his city and his comforts, but he is up to almost anything.
Decius' marriage to Julia, daughter of a (fictitious) brother of Gaius Julius Caesar was arranged, but very welcome to both.