Alyson Hannigan

Episode 1.07 "Matchmaker"

Ted uses the services of a professional matchmaker — who has never failed — to find himself a mate. Unfortunately the only match for Ted was already matched up, but he steals the contact info from the matchmaker and goes to see his match.

Lily and Marshall have an adventure with a marauding house pest they think is a mouse. Or a giant hairy cockroach. They dub it the "cockamouse." Turns out the creature also can fly.