If...

Guinevere had stayed with her ORIGINAL SUGGESTED PAIRING we would probably have a lot less of an emotional Arthur.

Gaius was a little more impulsive, the entire city would be rabbits and the King would be a hamster.

Gwaine had told the King to "royally stuff himself" when he was banished, he would probably be dead, but happy.

Arthur had looked behind the goddamn screen, he wouldn't have a mortal enemy, sworn to murder him.

Merlin had kept stealing Arthur's sausages, his royal pratness wouldn't look so fat in his armour.

Morgana had a speech impediment, she wouldn't make such a formidable opponent.

Uther had a catchphrase, it would be "LIKE A BOSS."

Leon cut his hair, he wouldn't look like Jesus.

Elyan had become a ninja instead of a Knight, he would be a damn Sensei by now. Instead, he's just Elyan. Tut tut tut.

Lancelot would stop being such a wimp and given up, he might have actually gotten to stay in Camelot, become a Knight and got the girl.

Percival was painted green, he would be the Incredible Hulk, and would have to wear torn up purple shorts...

Morgause had just decided to set up a feminist union and campaigned against sexism, she would probably be a lot better off.

Cenred had realised he was Morgause's bitch, he'd still be alive. Not that that's a good thing though...

Gilli had said "Look at the snake!" in a cameo in season one episode two, he wouldn't be Gilli to me anymore, just Dudley Dursley for all eternity.

Adrian had decided to become a rap star, his epic hat would become trademark.