Killiam started his career off as a youth at Peterborough United before returning home to Ireland in 2004 to play for John Gill’s Dublin City in a brief six-month spell.
A successful three-year stay at Derry City was to follow where he was a key part of a side that won three successive League Cups as well as the 2006 FAI Cup.
The midfielder moved onto Bohemians in 2008 where he would add significantly to his medal collection as they won back-to-back League of Ireland titles along with another FAI Cup, League Cup and the 2009-2010 Setanta Sports Cup.
Across four and a half years, the Drogheda man scored 29 league goals in 122 appearances for the Gypsies before moving across the capital to Shamrock Rovers.
A disastrous season for the Hoops saw them finish fourth in the table with Brennan scoring a consolation goal in their 3-1 League Cup final defeat to Drogheda as he left for St Patrick’s Athletic at the end of the season.
Killian played arguably the best football of his career in 2013 as he was voted the PFAI Player’s Player of the Year as he collected his third League of Ireland title having scored 8 times in 29 appearances.
He picked up another FAI Cup and League Cup winner’s medal while at the Saints before rejoining Shamrock Rovers for another one-year stay in 2016.
One of the most decorated players in League of Ireland history, Killian finally joined his hometown club in 2017 where he will line-up alongside his brothers Gavin and Sean.
Dublin City (2004)
Derry City (2005-2007)
Shamrock Rovers (2012)
St Patrick’s Athletic (2013-2015)
Shamrock Rovers (2016)
Drogheda United (2017-)
3 League of Ireland Titles
3 FAI Cups
5 League Cups
1 Setanta Sports Cup