Is is right?

What are you trying to say? It doesn't sound natural either with "is" or "are".

There is John and Suzan at my birthday party.

To make the sentence into something sensible, we can say " John and Suzan were at my birthday party."

Or John and Suzan are invited to my birthday party. "There are ...." just won't work.

Thank you so much.

"Oh, look! There are John and Susan, out in the garden!

It works for me. Do you see something wrong with it in this context?

Not at all

I agree with you completely.

Maybe I haven't been out enough! I know we can say "there are ..." a lot of peole in the garden. There are several bands playing in the park. There are - are usually associated with nouns, like "there are several security guards at hte entrance of the park". But there are John(s) and Nancy(s)?? in the park? Sorry!

Thanks so much

Dimsumexpress -- I can't quite explain this, but I think we are thinking of different contexts for "there is/are."

I would agree that you would not say "there is/are John and Susan" as an answer to "What is there?" meaning "what exists?" ("What is there in the garden? Well, there are trees, and flowers, and a bird feeder...")

However, I think "there are John and

Never mind.

The real context I saw was: (Look! There's John and Susan.)

So I objected to using ('s) singular helping verb with (John and Susan) plural nouns

That's all.