Nicki Rapp
Nicki Rapp ( often credited as Nikki Rapp ) ( born September 4 , 1972 ) is an American voice actress known for providing the voices for Lili Zanotto in "Psychonauts" , Morgan LeFlay in "Tales of Monkey Island" , Lilly in "The Walking Dead" video game , and the children in several games in "The Sims" franchise . 
<triplet> Nicki Rapp <subj> September 4, 1972 <obj> date of birth