Suggestions by @voicecasterdub40

Donald Glover

as Lee Thompson Young in Actor Biopics

Score: +1

Neil Flynn

as Leslie Nielsen in Actor Biopics

Score: +5

Frankie Muniz

as Mac Miller in Actor Biopics

Score: +1

'Weird Al' Yankovic

as Tiny Tim in Actor Biopics

Score: +6

Billy Crystal

as Alfie's Boss in Bluey [U.S. Dub]

Score: +1

Helen Mirren

as Dinah Ruffman in FETCH! with Ruff Ruffman (UK Dub)

Score: +1

Kate Winslet

as Trixie in FETCH! with Ruff Ruffman (UK Dub)

Score: +1

Alfred Molina

as Tom in FETCH! with Ruff Ruffman (UK Dub)

Score: +1

Daniel Craig

as Wink Ruffman in FETCH! with Ruff Ruffman (UK Dub)

Score: +1

Archie Yates

as Glen Ruffman in FETCH! with Ruff Ruffman (UK Dub)

Score: +2

Peri Baumeister

as Helga von Ruffman in FETCH! with Ruff Ruffman (UK Dub)

Score: +1

David Tennant

as Great Uncle McRuffmantosh in FETCH! with Ruff Ruffman (UK Dub)

Score: +1

Anthony Hopkins

as Ruffael Ruffmanowitz in FETCH! with Ruff Ruffman (UK Dub)

Score: +1

Liam Neeson

as Scruff Ruffman in FETCH! with Ruff Ruffman (UK Dub)

Score: +1

Emily Watson

as Grandma Ruffman in FETCH! with Ruff Ruffman (UK Dub)

Score: +1

Justin Fletcher

as Ruff Ruffman in FETCH! with Ruff Ruffman (UK Dub)

Score: +1

Stevie Wonder

as Composer in Live in Front of a Studio Audience: What's Happening!!

Score: +1

Jamie Foxx

as Bill Thomas in Live in Front of a Studio Audience: What's Happening!!

Score: +1

Kevin Heffernan

as Bruce in Family Guy [Live Action Movie]

Score: +1

Daniella Baltodano

as Debbie Hyman in American Dad (Live Action Movie)

Score: +1