Suggestions by @romarioharvey

Brenda Song

as Maria Wong in Braceface

Emily Hart

as Sharon Spitz in Braceface

Danny Woodburn

as BJ (Body Costume) (first appears in Season 2) in Barney & Friends Fanmade First Generation Cast (What if: Nick Jr. 2012-2016)

Ashley Boettcher

as Abby (Seasons 1-2) (Guest: Season 3) (Inspired by Amy from the Backyard Gang) in Barney & Friends Fanmade First Generation Cast (What if: Nick Jr. 2012-2016)

Jim Cummings

as Barney the Dinosaur (Singing Voice) in Barney & Friends Fanmade First Generation Cast (What if: Nick Jr. 2012-2016)

Chris Phillips

as Barney the Dinosaur (Singing Voice) in Barney & Friends Fanmade First Generation Cast (What if: Nick Jr. 2012-2016)

JD McCrary

as Elvis (Season 3) in Barney & Friends Fanmade First Generation Cast (What if: Nick Jr. 2012-2016)

Angelina Wahler

as Abby (Seasons 1-2) (Guest: Season 3) (Inspired by Amy from the Backyard Gang) in Barney & Friends Fanmade First Generation Cast (What if: Nick Jr. 2012-2016)

Gavin Casalegno

as Brian (Seasons 1-2) (inspired by Michael) in Barney & Friends Fanmade First Generation Cast (What if: Nick Jr. 2012-2016)

Emma Watson

as Love in Kuu Kuu Harajuku Recast

Fred Savage

as Barney the Dinosaur (Voice) in Barney & Friends Fanmade First Generation Cast (What if: Nick Jr. 2012-2016)

Jarvis B. Manning, Jr.

as Barney the Dinosaur (Body Costume) in Barney & Friends Fanmade First Generation Cast (What if: Nick Jr. 2012-2016)

Ellen DeGeneres

as Mauve Madison in Kuu Kuu Harajuku Recast

Joanne Vannicola

as BJ (Voice) (first appears in Season 2) in Barney & Friends Fanmade First Generation Cast (What if: Nick Jr. 2012-2016)

Andrea Libman

as Baby Bop (Voice) in Barney & Friends Fanmade First Generation Cast (What if: Nick Jr. 2012-2016)

Julie Lemieux

as BJ (Voice) (first appears in Season 2) in Barney & Friends Fanmade First Generation Cast (What if: Nick Jr. 2012-2016)

Raymond Carr

as Barney the Dinosaur (Body Costume) in Barney & Friends Fanmade First Generation Cast (What if: Nick Jr. 2012-2016)

Greg Morton

as Barney the Dinosaur (Voice) in Barney & Friends Fanmade First Generation Cast (What if: Nick Jr. 2012-2016)

Amos Watene

as Barney the Dinosaur (Body Costume) in Barney & Friends Fanmade First Generation Cast (What if: Nick Jr. 2012-2016)

Brady Noon

as Liam (Seasons 2-3) (Inspired by David) in Barney & Friends Fanmade First Generation Cast (What if: Nick Jr. 2012-2016)