Minstrelgirl451 wrote:
Should you always avoid having a character share a name with someone you know?
Certainly not! Some authors, in fact, make a
point of naming characters (generally
minor characters) after people they know; this is called "
Tuckerization."
And if I were to refrain from ever using any name that also belongs to anyone I know, I'd be almost entirely limited to obscure or purely invented names, which would be a pain (given the vast scope of the work that I've planned out and the sheer number of characters that will entail) and would also give the stories a decidedly different "feel" than I intend (a story about Alice and Bob sounds very different, even if there aren't actually any other differences, from a story about Arwen and Bilbo

).
On the other hand, if you think it's likely that people will draw an erroneous connection between one of your characters and someone in real life, there are things you can do. The first thing you can do is is, if you can truthfully say this, add a disclaimer to the copyright page when you publish it (or have your publisher do so if you go the traditional-publishing route) that it is a work of fiction and any resemblance to real persons, living or dead, or events is entirely coincidental. But while you're still in the process of writing or revising, you can alter the character to make
dissimilarities more obvious and any similarities less so; how to do that depends on your writing style (if you're a very visual writer, describing the character's appearance in a way that leaves no room for correlation with the real person's appearance would be a good start, while if you don't go in for visual descriptions much that would if anything be counterproductive.)
If all else fails, the name is a part of the character that
can if necessary be changed, either entirely or by using a nickname (in this case a different nickname than the real person). For example, I have two characters with names that are far too similar to each other, "Celia" and "Cecelia." To prevent confusion if they should ever appear in the same story, I've decided that the latter will go by "Cecy."
Finally, remember that there is rarely "one right answer" in writing; there are tradeoffs and judgment calls galore, and the answer to many questions is "It depends." There's a couple of lines from Kipling that I like to quote in discussions like these:
Rudyard Kipling wrote:
There are nine and sixty ways of constructing tribal lays
And every single one of them is right!
I hope
some of this, at least, helps
