Mr. Holden

Mr. Holden is an average, middle-aged man who's words causes those that hear it to burst out in hysterical laughter, even though everything he says isn't humorous in the slightest. This eventually gets him fired by his boss, who is desperately holding in hysterical laughter as he speaks with him, because his laughter inducement is considered obstructive by his fellow employees.

Example of:
The Unwitting Comedian