Denis J. Maginni
Maginni was a well-known dancing professor around Dublin. He was known for being exceptionally well-dressed. Here, he appears briefly in "Aeolus"' then fails to salute the vicergal cavalcade in "The Wandering Rocks." At Bella Cohen's brothel, when Stephen begins dancing with the prostitutes, he imagines that Maginni is there coaching him along.