Mugambi is an actor, writer, director and ad man. His career began in the Nairobi theatre scene in the early 2000's, where he worked on a range of stage plays and musicals. When he found himself jobless in America during the 2008 recession, he joined Philadelphia’s acting scene, appearing in independent stage plays and short films. On returning to Kenya, he landed principle roles in M-Net’s Pan-African TV drama ‘Changes’ and in the celebrated Kenyan films ‘Nairobi Half Life’ (2012) and ‘Stories of our Lives’ (2015). He then went on to co-write the award-winning feature films Kati Kati (2016) as well as 'Supa Modo' (2018), which was awarded the ECFA Award for Best European Film For Children. He is currently in post-production of his directorial feature film debut, 'Lusala', which premieres in June 2019. Mugambi is also part of Kenya's premiere improv show, Because You Said So, which hosts sold out shows every two months.