Something which links all the Final Fantasy main characters... *spoilers*

[playaGAW]

Blonde hair!

No one in FFI has blonde hair except the White Mage in the remake.
Firion: hair was Red (NES)/Grey (Remake)
Onion Kid: Not until the Remake
Cecil: Blueish Grey hair
Butz: Brown Hair
Terra: Green Hair (Grey if you're Michael Belmont)
Squall: Brown Hair

And for future reference Dr. Casey, Tidus's dad only exists as a giant, toxic, magical, apocalyptic whale. And Tidus is just a dream or something.

Celes had blonde hair. Remember FF6 has no single main character unlike the other games.

[Roto13]

They all look like girls. That's the link that ties them all together.

Or maybe it's all just a big RPG cliche.

By the way, Marche (Final Fantasy Tactics Advance) has both of his parents, I believe.

[Christmas]

ALL OF THEM HAVE LEGS.

[Sephex]

ALL OF THEM HAVE LEGS.

That is so ****ing freaky. I never noticed this.

[Purple shoot]

Its so obvius! it`s like i say that everyone have eyes!

ALL OF THEM HAVE LEGS.

[Dr. Acula]

ALL OF THEM HAVE LEGS.

You LIE!!!!!

[feioncastor]

The main character also usually has some sort of identity crisis, I've noticed... Well, I guess not usually, but it is a recurring theme. Cecil, Terra, Cloud, Squall, Tidus.

[Rengori]

The main character also usually has some sort of identity crisis, I've noticed... Well, I guess not usually, but it is a recurring theme. Cecil, Terra, Cloud, Squall, Tidus.

You left out FFIX Disc 3 Spoilers!Zidane, he was freakin' out when he found out he was made in tube.

[feioncastor]

I've never played all of FF9 so I didn't know that...

[DeathKnight]

They all look like girls. That's the link that ties them all together.
Or maybe it's all just a big RPG cliche.

By the way, Marche (Final Fantasy Tactics Advance) has both of his parents, I believe.

[Sylvie]

Squall didn't look like a girl. Cloud didn't. I'd say a lot of villains did though.

(Kuja, Kadaj, Sephiroth, Yazoo, Kefka (I think?)

[Incinerator]

They're all main characters

[YTDN]

They all wield sharp objects and have pwnage Limit Breaks.

[Dr. Casey]

Yeah. Cecil had the best Limit Break, though.

[Martyr]

None of them have both living parents.

FF1 - N/A as there's no real main character
FF2 - The three main characters are all orphans
FF3 - The Onion Kids are orphans, lol!
FF4 - The Great Light's still alive, I don't remember who Cecil's mom is
FF5 - Butz is an orphan
FF6 - Terra's an orphan, too.
FF7 - Cloud's mom might still be alive... dunno about his dad
FF8 - Living father, dead mom
FF9 - Hell if I know.
FF10 - Haven't played

So, what you're saying is that Square's foundation for the heroes of it's star RPG series is that they're all a bunch of bastards.

And the audiences relate.

How cute.