This article is about the Scooby-Doo! Mystery Incorporated incarnation of the character. For the Scooby Apocalypse incarnation, look here.
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* Physical appearance.
* Personality.

Cassidy Williams is a former member of the original Mystery Incorporated. She was eventually revealed to be Angel Dynamite who was working with Mr. E, seemingly to protect the new Mystery Incorporated.[3]

When she was a teenager, Cassidy had romantic fantasies about Ricky Owens, which she wrote about in her diary. Velma Dinkley is the modern counterpart of Cassidy (at least in terms of their looks and romance with the hippy of the group, as Professor Pericles was the smart one of Cassidy's group).[3]

Physical appearance

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Skills and abilities

As Angel, Cassidy had exceptional martial arts and acrobatics skills. She could throw music disks with dangerous accuracy.


Early life

Young Cassidy Williams

Teen Cassidy

Cassidy had entered the Darrow Mansion, along with the rest of her gang, but quickly left before Danny Darrow had finished laying all the traps.[3]

Their search into the pieces of the Planispheric Disk led them into a confrontation with the Freak of Crystal Cove, who had fabricated documents (with help from their traitorous mascot, Professor Pericles) that would hurt them and their families if they didn't leave Crystal Cove forever.[4]

Somehow she came back to Crystal Cove because of Mr. E, Ricky Owens's new identity, and created the Angel Dynamite persona to protect herself.

Scooby-Doo! Mystery Incorporated

Season one

Because Angel gave away that she knew about events in Crystal Cove twenty years ago that Destroido Corp. covered up completely from the newspapers, and because she produced the diary of Cassidy Williams,[3] Velma accused Angel of secretly being Cassidy Williams herself. Angel admitted this to Velma, but asked that she say nothing until Angel revealed it to the gang herself.[5]

She finally admitted her identity to all of them after helping them fight the Obliteratrix. She also told them how the old Mystery Inc. was forced out of town by threats to them and their loved ones, after they investigated an old Spanish church and found a picture of the Planispheric Disk. She warned them to stop their investigations or the same thing would happen to them, because the Freak of Crystal Cove that threatened them was "still out there."[4]

Season two

She stopped working with Mr. E, took back her real name, and got wardrobe change with a shorter haircut.[6]

She tried to convince Brad Chiles and Judy Reeves to care more about their son and less about the treasure, but she was rebuffed with threats.[7]

Her radio warnings convinced Professor Pericles that she had to be dealt with.[8]

The gang still didn't trust her, until she went with them on an underwater mission against killer robots and ended up sacrificing her life for them.[9]


Ricky and Cassidy (post-Nibiru)

Ricky and Cassidy.

After the Evil Entity was destroyed during the Nibiru event, it altered the timeline, removing its negative influence. Cassidy was now married to Ricky Owens and joined him in an advertisement for their company, Creationex Corp., which produced clean fusion energy.[10]


Additionally her voice can be heard in the following episodes:


See also


  1. Pawn of Shadows, season 1, episode 25.
  2. All Fear the Freak, season 1, episode 26.
  3. 3.0 3.1 3.2 3.3 Escape from Mystery Manor, season 1, episode 17.
  4. 4.0 4.1 Pawn of Shadows, season 1, episode 25.
  5. Menace of the Manticore, season 1, episode 21.
  6. The Night the Clown Cried II - Tears of Doom!, season 2, episode 3.
  7. Art of Darkness!, season 2, episode 6.
  8. Grim Judgment, season 2, episode 9.
  9. The Midnight Zone, season 2, episode 11.
  10. Come Undone, season 2, episode 26.
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