- "You know what the key is? If Dr. Clark doesn't understand your experiment, he gives it higher marks so it looks like he understands your experiment."
- ―Chris Epps[src]
Dr. Clark was a Sunnydale High science teacher. He often judged Sunnydale High School's Science Fair. If Dr. Clark did not understand an experiment, he would give the student higher marks to prevent himself from looking stupid.
- "Some Assembly Required" (Only mentioned)