Charlene M. Amoia (born September 25, 1982) is an American actress. She is best known for her recurring role as Wendy the Waitress in the sitcom How I Met Your Mother. Her film credits include American Reunion (2012), Authors Anonymous (2014), Harley Quinn: Birds of Prey (2020) and The Conjuring: The Devil Made Me Do It (2021), Sniper: Special Ops (2016).