Mustaq was first introduced to theatre when he was in high school in Singapore. He played a role in Peter Shaffer’s Royal Hunt of the Sun. During the next three years he acted in Eugene Ionesco’s The Chairs, Alfred Jarry’s Ubu Rex, Georg Buckner’s Woyzeck and Joe Orton’s Loot. On arriving in Shanghai, Mustaq renewed his love for the stage. He has acted in Timberlake Wertenbaker’s Our Country’s Good, Shakespeare’s A Midsummer Night’s Dream, King Lear and Twelfth Night, Samuel Beckett’s Waiting for Godot and Catastrophe, Henrik Ibsen’s The Master Builder, Oscar Wilde’s The Importance of Being Earnest, Neil Simon’s The Odd Couple, Shelagh Stephenson’s The Memory of Water, Bertolt Brecht’s Caucasian Chalk Circle, Tom Stoppard’s The Real Inspector Hound, Frank McGuiness's Someone Who'll Watch Over Me, Noel Coward's Hay Fever. Edgar Allan Poe's Masque'rade, Macabre Tales from Poe and Richard O'Brien's The Rocky Horror Picture Show.
Mustaq is also an accomplished singer comfortable in singing Blues, R & B, Soul, Funk and Rock & Roll