Answer:
irrevocable and vindictive
Explanation:
The damage those rumors did to the actor's reputation is irrevocable, so it is somewhat understandable that he became so  vindictive and bitter towards the members of the press who spread lies about him.
irrevocable: this means the rumors caused a lot of damaged that cannot be changed or reversed this is the reason why he has become vindictive(He desires a revenge from those that spread the lies)
