Scooby-Doo and Guess Who?

Frank Welker

Fred Jones / Scooby-Doo (voice)

52 episodes

Matthew Lillard

Shaggy Rogers (voice)

52 episodes

Grey DeLisle

Daphne Blake (voice)

52 episodes

Kate Micucci

Velma Dinkley (voice)

52 episodes

Mark Hamill

The Trickster (voice)

3 episodes

Billy West

Ebb / Skip Gilroy (voice)

2 episodes

Phil LaMarr

Caddy / Golf Announcer (voice)

2 episodes

John DiMaggio

Talent Agent / Crazy Karl / Baz Bozzington (voice)

2 episodes

Wanda Sykes

Wanda Sykes (voice)

1 episode

Ian James Corlett

Sherlock Holmes (voice)

1 episode

Ricky Gervais

Ricky Gervais (voice)

1 episode

Rachel Kimsey

Wonder Woman (voice)

1 episode

Penn Jillette

Penn Jillette (voice)

1 episode

Teller

Teller (voice)

1 episode

Jaleel White

Steve Urkel / Urkel-Bot (voice)

1 episode

Jim Gaffigan

Jim Gaffigan (voice)

1 episode

'Weird Al' Yankovic

'Weird Al' Yankovic (voice)

1 episode

Sia

Sia (voice)

1 episode

Kenan Thompson

Kenan Thompson (voice)

1 episode

Kevin Conroy

Batman (voice)

1 episode

Steven Weber

Alfred Pennyworth (voice)

1 episode

Whoopi Goldberg

Whoopi Goldberg (voice)

1 episode

Charlie Schlatter

The Flash (voice)

1 episode

George Takei

George Takei (voice)

1 episode