Suggestions by @romarioharvey

Rusty Goffe

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

Carmen Osbahr

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

Leslie Carrara-Rudolph

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

Tyler Bunch

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

Oliver Tree

as Sam Ryan in Piny institute of new York

Teddy Walsh

as Mason (Seasons 1-3) in Barney & Friends Fanmade First Generation Cast (What if: Nick Jr. 2012-2016)

Madisyn Shipman

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

Lulu Wilson

as Destiny (Seasons 2-3) (Brian & Abby's youngest sister) in Barney & Friends Fanmade First Generation Cast (What if: Nick Jr. 2012-2016)

Elsie Fisher

as Destiny (Seasons 2-3) (Brian & Abby's youngest sister) in Barney & Friends Fanmade First Generation Cast (What if: Nick Jr. 2012-2016)

Martin Klebba

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

Sofiya Cheyenne

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

Tonya Reneé Banks

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

Peter Linz

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

Deep Roy

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

Tony Cox

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

Millicent Simmonds

as Melissa (Deaf) (Season 3) (Guest: Season 2) (Inspired by Jason) (Reimagined as Female) in Barney & Friends Fanmade First Generation Cast (What if: Nick Jr. 2012-2016)

Miles Caton

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

Sonja Ball

as Helen Spitz in Braceface

Macaulay Culkin

as Adam Spitz in Braceface

Lindsay Lohan

as Alyson Malitski in Braceface