<p>Hello I was writing a Regular Expression (first time in my life I might add) but I just can't figure out how to do what I want. So far, so good since I already allow only Letters and spaces (as long as it's not the first character) now what I'm missing is that I don't want to allow any numbers in between the characters...could anybody help me please?</p>

<pre><code>/^[^\s][\sa-zA-Z]+[^\d\W]/
</code></pre>

If you only want to allow letters and spaces, then what you have is almost correct:
```
```
/^[a-zA-Z][\sa-zA-Z]*$/
```
```
The
```
$
```
at the end signifies the end of the string.
Edited to correct answer, thanks to @Alnitak