Hilary Duff Talks Working With Neil Patrick Harris & Hopes for More 'How I Met Your Mother' Cameos on 'How I Met Your Father'

Hilary Duff has big dreams for the future of How I Met Your Father, especially after landing a cameo from former How I Met Your Mother star Neil Patrick Harris. The 35-year-old actress opened up about her experience working with Neil and expressed hopes to welcome more stars from the original show onto How I