Deric Wan Siu-lun is a Hong Kong actor, singer, and songwriter who has acted in many movies and TV series and released several music albums. He is also known TV theme songs, including a duet with Nadia Chan, a cover of the song Yat saang ho kau (一生何求), and TVB series such as Looking Back in Anger and The Breaking Point. Wan has worked for TVB and CCTV.