Marieve Herington (born February 22, 1988) is a Canadian-American actress voice actress and singer who has appeared in recurring roles on How I Met Your Mother, Good Luck Charlie, and Ever After High. She is also the voice of Tilly Green on the Disney Channel show Big City Greens as well as voicing animated lead characters in Delilah and Julius and Pearlie. In addition to that she voiced Celestia Ludenburg in the popular anime video game Danganronpa Trigger Happy Havoc. At the age of 12, she began singing in major public performances. Since the age of 16, she has been fronting her own jazz ensembles. Currently, she performs with the Marieve Herington Band.