Nyora kuenderera mberi kweiyi ndima - Muna 2008, Onyango akaita firimu rake rekutanga mufirimu raWanuri Kahiu "Kubva kuWhisper". Anotamba Tamani, mwanasikana wemutengesi anodzidza kuti amai vake vakanga vasipo kwenguva refu vakaurayiwa pakaputika bhomba muNairobi muna 1998
, uye anobata nokunyora mifananidzo pamadziro epaki rokuyeuka. Akasarudzwa kuti ave Best Actress in a Leading Role paAfrica Movie Academy Awards. Muna 2010, Onyango akataura dragonfly mumutambo wevana weTV "Tinga Tinga Tales".