There is that stereotype of a nerd with the high pants and pocket protector and that kind of thing. That can sustain comedy for maybe a movie - hence the 'Revenge of the Nerds' franchise - but not for hopefully years on the air. It's a sight gag, not a story.
I don't feel that I have any great grasp of technique that I should pass along to people.
Even though people may be well known, they hold in their hearts the emotions of a simple person for the moments that are the most important of those we know on earth: birth, marriage and death.