Dr. Katz, whose voice and likeness was given by Jonathan Katz, is a professional therapist who has sessions with several famous comedians, at least one per episode. Most of them would recycle bits from their act.
"We are all blind men touching different parts of the same elephant"
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Jonathan Katz | Dr. Katz | 79 eps. |
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Laura Silverman | Laura the Receptionist | 79 eps. |
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H. Jon Benjamin | Ben | 79 eps. |
| Will Le Bow | Stanley | 34 eps. | |
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Todd Barry | 15 eps. | |
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Dom Irrera | 11 eps. | |
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Ray Romano | 7 eps. | |
| Fred Stoller | 5 eps. | ||
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Ron Lynch | 4 eps. | |
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Louis C.K. | 4 eps. |
| 1 | Pot-Bellied Pigs | 05/28/1995 | |
| 2 | Pretzelkins | 06/04/1995 | |
| 3 | Bully | 06/11/1995 | |
| 4 | Cholesterol | 06/18/1995 | |
| 5 | Everybody's Got a Tushy | 06/25/1995 | |
| 6 | Family Car | 07/02/1995 |