|Affiliations||Madam Opera's Estimable Marine Society for Foundling Boys and Girls|
Cuspin is an instructor at Madam Opera's Estimable Marine Society for Foundling Boys and Girls, although what subject he taught is unknown. Rossamünd Bookchild mentioned him to Europe when they talked about his background at the Harefoot Dig.
It is not known if Cuspin survived the fire that destroyed Madam Opera's. He was not mentioned in Fransitart's letter as having perished, but neither did Verline mention in her letter that he would be with her when she launched her new foundlingery.