Best Actor (Comedy/Farce) at the 22^nd Hong Kong Drama Awards; Performer of the Year at the 2017 IATC(HK) Critics Awards from the International Association of Theatre Critics (Hong Kong).  Member of music group Da Air Refresher.  Freelance actor.  Drama instructor. Yau founded The LOL Drama workshop in 2017 to provide specialised performance training courses for stage, film and television practitioners.

Yau graduated from the School of Drama, Hong Kong Academy for Performing Arts with a Bachelor of Arts (Honours), majoring in acting. Recent credits include Stage 64's May 35^th;  Class 7A Drama Group's 2097;  ISLT I sick leave tomorrow;  Dionysus Contemporary Theatre's Sunset Warrior and A Midsummer Night's Dream;  ViuTV's The Future is still in the Future ; Trinity Theatre's Home/Sick;  Radix Troupe's An Accidental Rainbow; On & On Theatre Workshop's The Phenomenon of Man: Revolver, Post-Colonial Food and Love and Siesta; Radiant Theatre's  Monkey Man, Rubber Man and The Eleventh City; Tang Shu-wing Theatre Studio's Macbeth (part of the Globe to Globe Festival at Shakespeare's Globe Theatre, London, United Kingdom),  Detention (Hong Kong, China and Edinburgh Fringe Festival Tour) and Titus Andronicus (Shakespeare's Globe Theatre, London, United Kingdom; tour to Berlin and Shakespeare Festival Neuss, Germany); Whole Theatre's A Spot of Murder and Gap Life (actor and lyricist); Black Bird Theatre's Freedom of Expression and facehome (Hong Kong, Guangzhou, Zhongshan Tour); Gekijyo Movie's Ozu's Landscape; Ho Bit Goon's Special Delivery: Politely Intractable;  DanceArt Hong Kong and Ho Ying-fung's In Search of Xuxian; Kung Music Workshop's Minamata : A Requiem; Dance Theater's Room9 (co-director); 41^st Hong Kong Arts Festival The Hong Kong Jockey Club Contemporary Dance Series Talk to Me (co-director, dramaturg and actor) etc.