Scooby-Doo and Guess Who?

Frank Welker

Fred Jones / Scooby-Doo (voice)

Matthew Lillard

Shaggy Rogers (voice)

Grey DeLisle

Daphne Blake (voice)

Kate Micucci

Velma Dinkley (voice)

Mark Hamill

Joker (voice)

Billy West

Ebb / Skip Gilroy (voice)

Phil LaMarr

Caddy / Golf Announcer (voice)

John DiMaggio

Talent Agent / Crazy Karl / Baz Bozzington (voice)

Wanda Sykes

Wanda Sykes (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)