Aidan Brosnan is a fictional character from the BBC soap opera EastEnders, played by Sean Maguire between 14 January and 28 December 1993. A popular character, Aidan is involved in storylines about homelessness, drug-abuse and suicide. His relationship with the character Mandy Salter is a dominant storyline in the serial throughout 1993.

Sean Maguire is an English actor and singer who has been professionally making films, television shows and performing on stage for over 40 years. Originally from London, Sean started his career at age five starring alongside Lord Olivier in A Voyage Round My Father. He then rose to fame at age ten when he was cast in the BBC drama Grange Hill in the role of "Tegs" Ratcliffe in which he remained until 1991. After leaving Grange Hill, Maguire played Aidan Brosnan in EastEnders.