Dr. Isaac Hershberg is Karen's doctor in Nice in White Satin.
- He was portrayed by Jack Black, who was writer Laura Kightlinger's boyfriend at the time.
- Jack Black was not credited for this role.
Are you ready for the Dr. Isaac Hershberg experience? — Dr. Isaac Hershberg
Damn you, God! Why? Damn you! Any hoozlebees. Mrs. Walker, how you feelin' today? — Dr. Isaac Hershberg, after giving bad news to a patient
If she weren't my sister, I'd be tapping that ass big time. — about Nurse Sheila