Sean Milner was a Human male serving in Starfleet in the late 24th century. Milner was born on Earth in the city of London.

By 2381, Milner had attained the rank of lieutenant and was serving aboard the USS Enterprise-E as gamma shift operations manager. One night during the invasion of the Borg Collective that year, Milner woke second officer Miranda Kadohata just shy of 0500 hours so that she could utilize a communications window to speak to her family. Milner had convinced first officer Worf to call in a few favors to allow them to route the communication through Klingon subspace boosters. (ST - Destiny novel: Gods of Night)

After the Enterprise discovered a network of subspace tunnels in the Azure Nebula, Milner was on duty when the USS Aventine returned from one of their scouting runs. (ST - Destiny novel: Mere Mortals)

USS Enterprise NCC-1701-E operations personnel
chief of operations	Data • M. Kadohata
other operations personnel	A. Berardi • S. Milner • Rosado
see also: Senior staff • Engineering • Flight Control • Medical and Counseling • Operations • Science • Security • Misc. • Unnamed