Mace played Steve (and his twin Craig) in the BBC sitcom Ideal between 2005-2010. In 2009, he starred in the horror comedy Zombie Women of Satan.[ He appeared in the second series of Hebburn as music producer Eric.
In 2010, he appeared on Dave’s One Night Stand
Mace also appears in the offbeat comedy film What Happened After Macbeth, which will be released in 2014.[n
He took part in the ‘Laughing for a Change’ project in 2014, which aimed to raise awareness of mental health through a comedy tour, also featuring Mrs Barbara Nice and Rob Deering. The project was supported by Time to Change.[
In 2015 Mace was nominated for an Edinbugh Comedy Award, for his show Seymour Mace is Niche as F**k!