Mr. Hyde (Sandy Duncan's Jekyll and Hyde)

Mr. Hyde was the disguise of Zalia Z. Fairchild.

Physical appearance
He was dressed and disguised to look identical to the movie role of Mr. Hyde as played by Duke Jason and his stunt double Slats, making it easy to sneak onto the set.

Personality
He was cunning but not too observant, or he wouldn't have mistaken Daphne Blake for Sandy Duncan at close range.

Season one
Insert details here. (Sandy Duncan's Jekyll and Hyde)

Appearances

 * The New Scooby-Doo Movies
 * Sandy Duncan's Jekyll and Hyde