Scooby-Doo and Guess Who?

Frank Welker

Fred Jones (voice) / Scooby-Doo (voice)

Matthew Lillard

Shaggy Rogers (voice)

Grey DeLisle

Daphne Blake (voice)

Kate Micucci

Velma Dinkley (voice)

Mark Hamill

Joker (voice) / Mark Hamill (voice) / The Trickster (voice)

John DiMaggio

Ghost of Abraham Lincoln (voice) / Talent Agent / Crazy Karl / Baz Bozzington (voice)

Phil LaMarr

Caddy / Golf Announcer (voice) / Madds Markson (voice)

Chris Paul

Chris Paul (voice)

Wanda Sykes

Wanda Sykes (voice)

Billy West

Mr. Peebles (voice)

Ian James Corlett

Sherlock Holmes (voice)

Ricky Gervais

Ricky Gervais (voice)

Rachel Kimsey

Wonder Woman (voice)

Penn Jillette

Penn Jillette (voice)

Teller

Teller (voice)

Jaleel White

Steve Urkel / Urkel-Bot (voice)

Jim Gaffigan

Jim Gaffigan (voice)

"Weird Al" Yankovic

"Weird Al" Yankovic (voice)

Sia

Sia (voice)

Kenan Thompson

Kenan Thompson (voice)

Kevin Conroy

Batman (voice)

Steven Weber

Alfred Pennyworth (voice)

Whoopi Goldberg

Whoopi Goldberg (voice)

Charlie Schlatter

The Flash (voice)

George Takei

George Takei (voice)

Halsey

Halsey (voice)

Steve Buscemi

Steve Buscemi (voice)

Jeff Dunham

Jeff Dunham / Walter (voice)

Darci Lynne Farmer

Darci Lynne Farmer / Petunia (voice)

Maddie Ziegler

Maddie Ziegler (voice)

Jeff Foxworthy

Jeff Foxworthy (voice)

Malcolm McDowell

Malcolm McDowell (voice)

Jennifer Hale

Thorn (voice)

Jane Wiedlin

Dusk (voice)

Kimberly Brooks

Luna (voice)

Christian Slater

Christian Slater (voice)

Neil deGrasse Tyson

Neil deGrasse Tyson (voice)

Bill Nye

Bill Nye (voice)

Kacey Musgraves

Kacey Musgraves (voice)

Morgan Freeman

Morgan Freeman (voice)

Kristen Schaal

Kristen Schaal (voice)

Joey Chestnut

Joey Chestnut (voice)

Gigi Hadid

Gigi Hadid (voice)

Alton Brown

Alton Brown (voice)

Tim Gunn

Tim Gunn (voice)

Tara Lipinski

Tara Lipinski (voice)

Chloe Kim

Chloe Kim (voice)

Laila Ali

Laila Ali (voice)

Liza Koshy

Liza Koshy (voice)

Macklemore

Macklemore (voice)

Sandy Duncan

Sandy Duncan (voice)

Alex Trebek

Alex Trebek (voice)

Axl Rose

Axl Rose (voice)

Jason Sudeikis

Jason Sudeikis (voice)

Lucy Liu

Lucy Liu (voice)

Sean Astin

Sean Astin (voice)

Cher

Cher (voice)

Jessica Biel

Jessica Biel (voice)

Joseph Simmons

Reverend Run (voice)

Billy Dee Williams

Billy Dee Williams (voice)

Terry Bradshaw

Terry Bradshaw (voice)

Carol Burnett

Carol Burnett (voice)

Tom Kenny

Augie Anderson / 'Mudsy' Muddlemore / Sergeant Ghost (voice)

Johnny Gilbert

Announcer (voice)