My Cat from Hell [Capitalize all significant words in a title]

I wonder if a predicate verb is missing from a the name title of the show, the Animal Planet channel show? Doesn't it must be like Shouldn't it be "My cat is from hell"? ?

Titles should be short, catchy and interesting phrases.  They follow the same rules as headlines in newspapers.  So they don't need to conform to the regular rules in prose writing.  As the matter of fact, they are often the preferred way because it uses less space and to catch the attention of the readers quickly.  Sometimes, it is used to "mislead" for the sake of sensationalism.  The title can be even made shorter to create curiousity and interest.  "The Hell Cat".  I am sure it is with Russian newspapers.

"(something) from hell" is a fixed phrase that does not require the verb "to be".  In this context, "from hell" means that something is the worst or most dreadful thing of its kind (as if they really were from hell!). Examples: "Everyone calls Mr. Jones 'the teacher from hell' because he gives us three hours of homework every night."   "For the last ten years, I've been working for the boss from hell. He shouts at all the employees, and never gives anyone a raise."   "Paul drank so much beer last night, he woke up with a hangover from hell."