Origins in Divinity: Original Sin 2 give the player unique Tags, appearance and in one case a Talent. They are essentially the equivalent of premade characters. Players can also choose Custom if they wish to have more flexibility in their Character Creation, but there are unique opportunities only available to the premade Origins.
I made a custom character (the Divinity version of my avatar/OC). You can experience all the origin stories by recruiting them as party members anyway, which seems like a better way to do it, though I appreciate the option. You do get a sense of their story as companions, but the quests are more in depth when you play as them. Divinity: Original Sin 2. If you're worried about customization, you can customize just as much on an origin character as you can on a custom EXCEPT for: their name, their voice acting, and their tags (noble, jester, mystic, etc). Jul 12, 2018 @ 8:00am. Slave no more, you still bear scars your master gave you, and wield the skills he taught you. Origin characters also have unique versions of some quests (There are times when they get separated from the rest of the party and see things from a different perspective), but then again, so do Custom Characters simply by not being an Origin character. Custom Characters also get the special ability 'Dome of Protection' as their inherent source.
Divinity Original Sin 2 Custom Vs Origin
Also, In Divinity: Original Sin 2, you can romance any companion of yours, no matter your origin, gender or race.
Origins
Sebille
Slave no more, you still bear scars your master gave you, and wield the skills he taught you: femme fatale, spy, assassin. Skills you plan to use against all masters.
The Red Prince
Original Sin 2 Origin Characters
Unique among your own kind, you are a prince exiled from your Empire. This land is hostile, its inhabitants inferior, but no one will stop you march to vindication.
Ifan ben-Mezd
No body escapes the Lone Wolves unscathed, and your freedom was won at a terrible cost. You swore you were done, but there is one last wrong you need to right.
Lohse
You were never normal: mind a playground for demons, body prone to violent episodes. The Divine himself couldn't save you, can you save yourself?
Beast
Your failed rebellion against the Queen nearly destroyed you - so you began a new life on the high seas. Now, your old enemy is back. If you don't stop her, no one will.
Fane
You woke up and your world was gone. The last of your kind, you hide behind a charmed mask, searching for the truth about a history that no one knew existed.
Custom Origins
You can choose several different tags as the origin of your custom character. Tags affect the dialogues in game, providing alternate ways to complete quests.