Hey, there!!
There is no place for virus, virions, prions in kungdom classification. The reason is they show both living and non living characters, which don't define them whether they are living beings or non living things.
As in 5 kingdoms, the only living organisms are classified.
So, you can see that there is non of the kingdoms which deals with the organism which have similar characteristics like viruses, virions and prions.
Hope it helps...