Well, an actor is an actor is actor, to paraphrase someone or other and the opportunity to work, to have a steady engagement, certainly seemed like an appealing concept to me.
Meaning of the quote
Being an actor is a great job because you get to work regularly and have a steady paycheck. Walter Koenig, an American actor, thought this was a very appealing idea. He doesn't really explain what he means by "an actor is an actor is actor," but he seems to be saying that being an actor, no matter what, is a good thing.

About Walter Koenig
Walter Koenig, an acclaimed American actor and screenwriter, is best known for his iconic role as Ensign Pavel Chekov in the original Star Trek TV series. He has reprised this role in several Star Trek films and has also written for various TV shows throughout his impressive career.
More quotes from Walter Koenig
Religious tolerance is something we should all practice; however, there have been more persecution and atrocities committed in the name of religion and religious freedom than anything else.
American actor and screenwriter
I’m always looking for a low-budget script with an interesting character to play.
American actor and screenwriter
Well, an actor is an actor is actor, to paraphrase someone or other and the opportunity to work, to have a steady engagement, certainly seemed like an appealing concept to me.
American actor and screenwriter