Complex sentence: Gallagher has also attended anime conventions outside of the United States; he was Guest of Honour at Aya Again, an anime con located in Northampton, UK, at the start of November 2003.
Split into simpler sentences: Gallagher has also attended anime conventions outside of the United States. He was Guest of Honour at Aya Again, an anime con located in Northampton, UK, at the start of November 2003.