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The Cursed Cabinet of Professor Madds Markson!

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The Cursed Cabinet of Professor Madds Markson!
Premiere date: August 8, 2019
Music composed by: Steven Morrell
Writers: Michael Ryan
Directors: Frank Paur
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Title card
SDGW 107 title card.png

"The Cursed Cabinet of Professor Madds Markson!" is the seventh episode of Scooby-Doo and Guess Who? season one. It aired on August 8, 2019 on Boomerang's SVOD service. It was written by Michael Ryan, produced by series creator, Chris Bailey, and directed by Frank Paur.

Mystery Inc. is invited to spend the night in a haunted hotel for a million dollars in Las Vegas by its reclusive owner. While there, they meet famous TV magicians, Penn & Teller.

Detailed summary

Memorable quotes

Fred: Las Vegas, the city that never sleeps.
Daphne: That's New York, Freddy! The Big Apple.

Shaggy: Like, I'm pretty sure the only buffet they got here is the All-You-Can-Scream!

Shaggy: Like, man! Why do we always end up at haunted places?! Every single time!
Fred: Just lucky, I guess.

Fred: Hold the phone! It's...
Mystery Inc.: World-renowned magicians and entertainers, Penn & Teller!

Shaggy: Always a bridesmaid.
Scooby: Never a bride.

Tess: And thanks to you meddling kids and magic legends, Penn & Teller, I've got some great footage.

Teller: And I would've gotten away with it, too, and Penn being so hard to fool.


Character debut Speaking debut Ep. debut No lines Mentioned

In order of appearance:

Character Actor
Demolition boss Phil LaMarr
Demolition worker Frank Welker
Ghost of Professor Madds Markson Phil LaMarr
Fred Jones Frank Welker
Daphne Blake Grey Griffin
Shaggy Rogers Matthew Lillard
Scooby-Doo Frank Welker
Velma Dinkley Kate Micucci
Penn Jillette Himself
Teller Himself
Tess Flemmings Grey Griffin
Hugo Hauser Unavailable
Professor Madds Markson Unavailable
Harry Houdini








It was copyrighted in 2018.


The theme song, entitled "Scooby-Doo, Where Are You?", was written by Chris Bailey, and performed by David Poe. It was produced by Vivek Maddala. The score was composed by Steven Morrell.


Dates are in order of release:

Behind the scenes

  • With every episode's title card, one of the gang announces the guest star, which is Fred this time.
  • Fred says "Hold the phone" once.
  • Velma says "Jinkies" once.
  • The Savannah has a painting of the Witch Doctor from the Scooby-Doo, Where Are You! episode "Decoy for a Dognapper."
  • Daphne can apparently "speak mime," which is interesting because she did become a mime in the Be Cool, Scooby-Doo! episode "There Wolf."
  • Tess thought Penn & Teller were doing a TV special, which they are known for.
  • Teller signs the million dollar check to "Scooby-Doo & Friends."
  • Welker and Teller aren't credited for the construction worker and Hugo, respectively.


  • Although Fred calls it the Madds Markson Theater, the sign simply says "Theater."

Critical reception

In other languages

Language Name Meaning

Home availability