I actually prefer writing sitcoms and sketches with recurring characters. I like their familiarity. It's like a party and not being sure who is going to show up and when they do, Yippeee!! Hello again! Nice to see you...
To the snobs who look down on recurring characters: If you would examine your characters throughout your sketches (say, 20) you would definitely find that you only have about 3-5 characters with similar traits. In other words, you DO write recurring characters but with different names and/or physical qualities but their psychological essence is still the same.
Don't get me wrong:
I can appreciate the goal of a show like Mr Show whose objective is to avoid repeating a character but that doesn't mean I like that goal better than shows who DO have recurring characters. Again, I like the familiarity of a character. I liked Little Britain because of the recurring characters (especially the "vomit lady"). Yes, I know what they are going to say or do and I wait for it like a dog waiting for a biscuit---and I am as appreciative as one, too.
It's a lovely day here in the south east of England. I cannot think of a place I'd rather be. I feel extremely fortunate to be allowed to live here. California has nothing on this place. NOTHING!