Kamil Masood made his first appearance 23 February 2010. He is portrayed by Arian Chikhlia.
In August 2009, Zainab is forced to come to terms with the fact that she is 15 weeks pregnant in her mid-40s, and the pregnancy means that her and Masood's plans to see the world have to be cancelled. Zainab is terrified due to her age and the fact a baby will interfere with her career, and she feels trapped because she does not want the baby but abortion is forbidden by her faith.
In February 2010, Zainab becomes locked inside her office unable to contact anyone when her labour starts. She is found by Christian Clarke who contacts Masood and his two sons Syed Masood and Tamwar Masood. Christian calls for an ambulance, but the baby starts to come so Christian passes on instructions while Masood delivers the baby. Kamil is not breathing when he is born, so Christian instructs Masood to perform CPR, saving the infant's life. Zainab is then taken to hospital where she and Masood name their son.
Kamil's parents divorce, and Zainab married Yusef Khan soon afterwards. Yusef wants to move to Pakistan and fearful that Zainab will not go with him, he kidnaps Kamil, telling Zainab that he is being kept in a safe place. Yusef later reveals that he has left him with an old friend called Laila. Masood manages to get Laila's address and goes to retrieve Kamil. Laila refuses to let Masood in as Yusef had told her Masood was dead, but Masood forces his way in and takes back his son. Yusef dies soon after and Kamil's parents reunite. When his parents separate again in February 2013, Kamil leaves Walford with his mother to live in Pakistan. Kamil returns at the end of July when Masood brings him back. During this time Kamil bonds with his uncle AJ Ahmed, and then later leaves again in September and goes back to Pakistan. In November 2015, Zainab sends Kamil to Walford to meet his sister Shabnam Masood for the first time and attend her wedding. Masood later contacts Zainab and refuses her access to Kamil unless she comes back to Walford. In December, Kamil auditions for the lead part of Joseph in the Walford Nativity play, a part which Shabnam is unsure of. When Zainab decides to get remarried she sends for Kamil; Tamwar and his girlfriend Nancy Carter accompany him on the flight to Pakistan before continuing in their travels around the world.