[quote=@PharaohAtem]
Sorry for miss quoting you on that last one but in back to the future they still sent messages to themselves in the present from the past which is where the child comes in and in Back to the Future, Dr. Who and most time travel shows meeting yourself is very bad and had a lot of repercussions meeting your child or parents however is fine because he would still be restricted in helping himself stop Zeus from defending him although you are completely right about how it would restrict the possibilities of what you could do with the character.
[/quote]

And they have the very real capacity to change the past, as seen as a result of every movie. Also no where in Doctor Who has it ever been a bad thing to meet yourself. Meddling in your own timeline has some repercussions but meeting yourself isn't a problem. They make an episode every ten years about multiple incarnations of the Doctor going on adventure together. See "The Two Doctors" "The Five Doctors" "The Name of the Doctor" "Time Crash" and "The Day of the Doctor". Doctor who plays very fast and loose with time travel, in fact it was basically established that as the last of the Time Lords the Doctor is in charge of the rules of time travel so basically any rules he does set forth are more like "I don't want you to do this" not "This isn't physically possible".

But let's say meeting yourself physically does result in something bad, he has to be able to exist in same time period as past versions of himself because as a titan his timeline goes from more or less the beginning of creation to the end so if he couldn't exist in the same time period as himself he couldn't time travel. With this in mind Kronos could still go back to the Golden Age and through indirect means, most likely the intervention of another titan of that time period, make sure Zeus died.

The point being there isn't a scenario that allows Chronos to be freed and travel back in time to sire a child that doesn't also allow him to travel back further to prevent his own imprisonment without rendering his time powers almost completely nonfunctional.

[quote=@Bishop]
You know, gods and titans and all that don't have to actually have sex with a human to make them pregnant. Chronos could as well have shot an energy, part of himself through the prison of hell, through some opening and that energy wandered the world for the perfect vessel. Once it found the mother, it made her pregnant and BAM you have the child of Chronos.
"The war between the Gods was causing anomalies  all around the world. The barrier which divided hell from earth was breaking, cracks had begun to show. And from those cracks, Father Time took the opportunity to expel some of his energy which contained himself in it, to the realm of earthlings."

"Before the Titan of Time, Chronos was imprisoned by his son Zeus, he expelled a part of himself in the form of energy. This energy disappeared as it vanished from the current timeline. It traveled through countless ages and timelines until it found the right moment to emerge and find a vessel. The vessel would give birth to a child of Chronos. As foreseen and planned by Chronos when he was imprisoned, this child would then later help him escape from the prison. This was assured as he imprinted a part of himself in that child and with that his own will."

There are countless version from which you can pick to pull this off. Be creative!
[/quote]

There are underworld gods, a fair number of them whose entire purpose revolves around making sure nothing gets out of Hades.

The Greek gods are physical entities. Amazing power sure but existing in two places at once or splitting themselves into pieces is sort of beyond them. They're not spirits. The cases in Greek myth where someone was impregnated by proxy usually involved severed or separated bodily fluids. For instance when Kronos castrated Uranos the blood and semen from his severed testicles covered the earth and led to the creation of the Hundred Handed Ones. His testicles themselves dissolved in the ocean and from that the Goddess Aphrodite arose. My point being that a demititan created by Kronos would have to date back to the end of the titan's reign at the latest. Or involve some seriously questionable divine sperm bank encounter.

This is more of a side note but "Hades" the Greek underworld and the classic interpretation of "Hell" are very very different things. There's no fire or brimstone in Hades. Actually a good portion of it is barren and the punishments for the section of the underworld devoted to that (The Fields of Punishment) are more karmic and person specific rather than a general "burn for all time" type deal.

Also the way the Greek Underworld is arranged being able to break part of himself off and slip it through from Tartarus to the other side wouldn't result it in being on earth but in the Underworld proper. Basically you have Earth, directly below earth is the underworld and then as far above the earth as heaven is that same distance below the underworld is where Tartartus is located. It was chosen as the titan's prison for a reason cause even escape from there you've simply escaped into the outer prison from which you also need to escape to make it to earth.