In this paper we present the details of our first entry for the Blizzard Challenge 2008 speech synthesis evaluation. Our system is a new HMM-based text-to-speech voice building system for the HTS runtime synthesis engine. We entered two UK English voices, one built from the full database provided, A, the other from the Arctic subset, B and one Mandarin voice built from the provided database. The evaluation results show that our system provides very good intelligibility, moderate naturalness and low similarity to the original speaker.