artist

/artist/

Cases

SingularPluralWhen to use it
nominativeartistthe actorartistlethe actorsthe plain dictionary form — the doer of the sentence
genitiveartistnithe actor'sartistlenithe actors'the owner — whose it is
accusativeartistnithe actor (as the object)artistlenithe actors (as the object)a specific, known object — whom or what
dativeartistgeto the actorartistlegeto the actorsdirection or recipient — to where, to whom
locativeartistdeat / in the actorartistledeat / in the actorswhere it is; also having — mende bar, "I have it"
ablativeartistdenfrom the actorartistledenfrom the actorswhere it comes from; also "than" when comparing
When to use each case
nominative
the plain dictionary form — the doer of the sentence
genitive
the owner — whose it is
accusative
a specific, known object — whom or what
dative
direction or recipient — to where, to whom
locative
where it is; also having — mende bar, "I have it"
ablative
where it comes from; also "than" when comparing

The endings are the same ones the pronouns wear — that page explains when each case is used.

With an owner

One ownedSeveral owned
myartistimmy actorartistlerimmy actors
yourartistingyour actorartistleringyour actors
his / herartistihis / her actorartistlerihis / her actors
ourartistibizour actorartistleribizour actors
you all'sartistigizyou all's actorartistlerigizyou all's actors
theirartistleritheir actorartistleritheir actors

The overlap in the last rows is real, not a mistake: artistleri can mean "his / her actors", "their actor", or "their actors" — context decides.