|Specialization||Assorted specialties (including fire magic, protective magic)|
|Residence||Imperial University of Carthak|
|Accreditation||Mastery, red robe|
|Student(s)||Arram Draper, Ozorne Tasikhe, Varice Kingsford, and probably others.|
|Tortallan Universe character|
|Only Appearance||Tempests and Slaughter|
Cosmas and his colleague, Sebo Orimiri, both came to the rescue when Arram Draper accidentally caused a flood in his classroom in a lesson with Girisunika, another teacher at the School for Mages. After the incident, Cosmas and a bunch of his colleagues decided to remove Arram from the regular curriculum and advance him, creating a special curriculum designed for his powers. Cosmas coordinated a new arrangement for the boy's education with Arram's mother and grandfather during the winter of HE 435 via the Council of mages in Tyra. He gained their signature on an agreement that the university assumed Arram's supplies, housing, and class fees. Cosmas drove the arrangement in order to ensure Arram never had to stop studying due to his family's financial resources, and it also gave the university the authority to decide what subject matter Arram would study.
He also taught a variety of subjects at the university, although it is unknown if he only did one-on-one courses with advanced students. He advanced Arram to a semi-independent level at the Lower Academy immediately after the incident with Girisunika. He started teaching Arram specific subjects in the Summer Term of 436 HE, which he did alongside Ozorne Tasikhe and Varice Kingsford. He taught protective circles for several terms, then moved on to Fire Magic the next year in the Summer Term of 437 HE, and continued through the Autumn Term into the Spring Term of 438.
Cosmas is described as a snowy haired white man.