Question: Who plays lily on how i met your mother?
Answer: Alyson Lee Hannigan
Disambiguated annotations:
qaPairs: question: Who plays adult  lily on how i met your mother?
answer: Alyson Hannigan
question: Who plays 11-year old lily on how i met your mother?
answer: Piper Mackenzie Harris
question: Who plays 7-year old  lily on how i met your mother?
answer: Francesca Capaldi