Deschamps
Chapter 59 - The Will
Deschamps — aliases: M. Deschamps, the family lawyer
Deschamps is identified as the family lawyer with whom the sealed will is deposited at the end of the proceedings, though he does not actively participate in the dictation scene itself.
Chapter 74 - The Villefort Family Vault
Deschamps — aliases: notary, Monsieur Deschamps
The notary arrives with his papers, formally questions Franz about his identity, and reads the clause in Noirtier's will that withdraws Valentine's fortune upon her marriage to Franz, explaining the legal implications to the parties present.