Mother Goose is an imaginary author of fairy tales and nursery rhymes. She is also friends with Barney and visits him and his friends every once and a while. Oftentimes, she already knows his friends, as she knows the name of everyone who has ever read her rhymes. She was originally portrayed on Barney & Friends by Sandy Walper in the episodes Let's Help Mother Goose!, and Honk! Honk! A Goose on the Loose!
- Sandy Walper (Let's Help Mother Goose! and Honk! Honk! A Goose on the Loose!)
- Michelle McCarel (Barney's Big Surprise)
- Barbara Lowin (A "Little" Mother Goose / Barney's Rhyme Time Rhythm)
- Julie Johnson (Mother Goose)
- While Julie Johnson is playing Mother Goose in Mother Goose, Baby Bop, who she performs normally, doesn't say anything.
- Mother Goose (Sandy Walper) never appeared with Tosha, Tina, Luci, David (Kenny Cooper), Jason (Kurt Dykhuizen), Baby Bop, or BJ. However, Min and Shawn appeared in both of her appearances.
- Mother Goose (Barbara Lowin) never appeared with Hannah, Stephen, Kim, Danny, Chip, or Linda.
- Sandy Walper and Barbara Lowin make two appearances as Mother Goose while Michelle McCarel and Julie Johnson only make one appearance each.