Gathoni Mutua was born in Nairobi, Kenya, and attended both Kenyan and Canadian universities before transferring to Azusa Pacific University to pursue a BA in Theatre Arts. She is best known for her work as an assistant director on pilots, shorts, and movies.
Noni rose to prominence when he hosted the wedding show on Citizen TV before going to Ntv to broadcast new Baileys weddings. She also stated that she has worked in a newsroom but found it uninteresting, which is why she chose to be a television host. She was also a host on Switch TV, where she hosted the Chatspot show. She is now hosting Rate My Style on Ebru tv.