Dr. Lang

Dr. Lang is a research scientist and teacher.

Physical appearance
Dr. Lang is a middle-aged female, with long brown hair and gray streaks.

Personality
She had a deep love for the Crystal Canopy, and was protective of the crystals inside, not letting anybody from the public have access when she came to study them. She was fond of former student, Velma Dinkley, but wouldn't even let her in.

Early life
She was Velma's former science teacher, whom she saw as a shining student.

Be Cool, Scooby-Doo!
Dr. Lang was the head a small group of research scientists into the caves of to prove that the crystals were too fragile to be seen. This didn't bode well with Coulson McCreaty, who was making a touring business out of it, and so dressed up as the Crystal Crawler to cut his losses. she was present when when the gang revealed his scheme.

Appearances

 * Be Cool, Scooby-Doo!
 * 107. Be Quiet Scooby-Doo!