Okay, I understand what you say.
But I can't reformat the data, so what I've been thinking is to delete null values in a WHERE sentence:
CALL apoc.load.json("example.json") YIELD value AS json
UNWIND json.objects AS objects
UNWIND objects.part2.components as component
WITH *, component.actioner AS actioner WHERE component.actioner IS NOT NULL
return actioner.text
But I can do it once, if I do the same with actioned I get no results:
CALL apoc.load.json("example.json") YIELD value AS json
UNWIND json.objects AS objects
UNWIND objects.part2.components as component
WITH *, component.actioner AS actioner WHERE component.actioner IS NOT NULL
WITH *, component.actioner AS actioner WHERE component.actioner IS NOT NULL
return actioner.text