Mm, what kind of character names are you looking for? What kinds of character are you planning to describe? A fiery hot-temper character might have a striking name like "Blair," while a soft character might have a soft name like "Lily." Are you looking for names to describe specific people with specific personality or all you looking for filler names for extras? Are you looking for names on the basis of sound or would you like names with meaning? (Abigail, for an example means "My father's joy") If you're just looking for some filler names, here's some names at the top of my head:
Alex, Lindsy, Horatia, Horus, Madeline, Seth, John, Roxy, Riddley, Rena, Rachel, Lilian, Vicky, Elizabeth, Lisa, Elijah....