Trying to find out how to have an actor, who is misrepresenting herself in a part I played.

Or are they just aloud to credit themselves to other people's roles or positions when they feel like it?

Ok then what happens to those who add themselves as credit talent when they in fact are not credited... let alone not even in the episode?

I have no insight about Kirstin Zotovich's credits in "The Drew Carey Show" (when were they added, what were the sources (if any), who submitted those credits, who approved them and based on what sources, etc).

If you can prove that those credits are indeed wrong, you can submit the request of deleting them by following these guidelines:
http://www.imdb.com/help/show_leaf?resumedelete#howtodelete

If you can watch the episodes where Kirstin Zotovich is credited (as "Waitress"), you can probably fully confirm that:
a) Is she visible on the screen (maybe in the background as an "extra" etc)? Was there "another" waitress in the show at some point?
b) Is she credited in the end credits?
If the answer to both is "no", you've your proof. I mean the rules are fairly straightforward:

For cast/acting appearances, you must be identifiable and featured on-screen in the final released cut of the title. In other words, it's not enough to have worked on a production: your scenes must be included in the final cut and it must be possible to easily identify your appearance (i.e. background work as a crowd member or a similar role where it is impossible to recognize the subject are not eligible). If you ended up on the cutting room floor, you are not eligible to be listed. 

Thank you Ebony again for take the time for this. One last question I believe. This rule also means per individual episodes? That a person can't claim to be in episodes they are not in even if they may have appeared in other episodes of a show?
And I have watched 13 of the 25 episodes and have identified in 8 of them I and the lead actress, Cynthia Watros, are the only waitress on the episodes. 2 out of the 13 of them have the other bar/ waitress situations in them however there is only one of them that Ms. zotovich might have been in... and the others are either only Ms. Watros or there are not scenes with waitresses in them.
I will watch the rest and follow your instructions with the proof.
Again thank you.

This rule also means per individual episodes? That a person can't claim to be in episodes they are not in even if they may have appeared in other episodes of a show? 

I'm not sure that I fully understand the question. IMDb's approach to TV series is that people should (eventually - not all TV series in IMDB has "episode guides" yet) add the episodes. Then cast&crew should be added to the individual episodes (at least eventually).

Ms.  Zotovich has a Twitter, it seems, so perhaps you could ask her about his issue via private message? I'm not a Twitter user myself, so I don't know how "private" messages work, but maybe this could help: https://support.twitter.com/articles/14606
Anyway, this is just a suggestion.
(Edit: Ah, it seems that you have to "follow" the person first to be able to send the private message..)

I have contacted her via FB. Thank you. But are you to say that IMDB will not do anything about her claims to these episodes? That she is not required to prove that she was in them if she so choses to leave them up? 

And are you saying that IMDB will do nothing about my claim that they are false?

Hi Cristina,

If you have watched the episodes and you are sure that she is not featured then please submit an update to remove the credits by using the edit page feature.

I have watched them all and every one except three episodes (in which only one of those episodes might have her in it) the waitress is either me or the lead of the show... or there isn't a waitress at all and I will submit an update to have her credits removed however it is very strange that I have to be the one to essentially delete them. It seems like something IMDB staff should do. I just happen to be the person she was claiming to be. It's a good thing I ran across this and had the time to review these episodes...if I hadn't she'd get away with it. I used to believe IMDB and the information they had on the site had integrity but it's apparent it doesn't. And that anyone can claim to be someone they aren't. Thanks for your help but it's unfortunate that moving forward I have to doubt the information I find on your site... guess others should too.

Hi Cristina,

We do care about the accuracy of data on IMDb but unfortunately given the number of credits that get submitted to the site occasionally things do fall through the net. Given your comments I'm happy to remove the credits from her name page. It can be difficult for us to establish these cases with roles such as "waitress" without seeing the episodes ourselves but thank you for researching this case and bringing the inaccuracy to our attention.

Regards,
Will

Thank you Will. It is nice to know that correctness of information is important. And It's important that the site have integrity... I also understand the weight of all the information you must be dealing with.