Great Old Ones ...

[StarScepter]

... are these WotC's answer to the Lovecraft Cthulhu mythos?

[seandeven]

Simple answer. Yes.

[Angel]

sure, why not

[jonnin]

the wiki sez:
Entities of this type include Ghaunadar, called That Which Lurks; Tharizdun, the Chained God; Dendar, the Night Serpent; Zargon, the Returner; Great Cthulhu; and other unfathomable beings.

https://dnd5e.wikidot.com/warlock:great-old-one

I don't know what is official and what is not. I suspect for copyright reasons that any official books and sites would leave Cthulhu out of it -- there is a TT RPG for lovecraft as well as the IP for his books etc so it seems like a bad bet to borrow too much from it overtly.

[Scheneighnay]

it's pretty much a catch-all patron classification, but basically yes.

[Tresh]

Originally posted by jonnin:

the wiki sez:
Entities of this type include Ghaunadar, called That Which Lurks; Tharizdun, the Chained God; Dendar, the Night Serpent; Zargon, the Returner; Great Cthulhu; and other unfathomable beings.

https://dnd5e.wikidot.com/warlock:great-old-one

I don't know what is official and what is not. I suspect for copyright reasons that any official books and sites would leave Cthulhu out of it -- there is a TT RPG for lovecraft as well as the IP for his books etc so it seems like a bad bet to borrow too much from it overtly.

Nope, Cthulhu is in the 5e player handbook and there's no problem in terms of IP, either, since most, if not all, works of Lovecraft are public domain.

[Archon]

I wish tav warlocks had interaction with their patron would love to have to Eldritch horror ♥♥♥♥ happen, Wyll's patron being a fiend is such a missed opportunity.

[Tresh]

Originally posted by Archon:

I wish tav warlocks had interaction with their patron would love to have to Eldritch horror ♥♥♥♥ happen, Wyll's patron being a fiend is such a missed opportunity.

A warlock with a Great Old One patron rarely has any kind of personal relationship with their patron. The player handbook suggests they are likely entirely indifferent to you, if they are even aware of your existance, so a Great Old One patron would honestly be pretty boring in terms of interactions.

[Shale]

Originally posted by Tresh:

Originally posted by Archon:

I wish tav warlocks had interaction with their patron would love to have to Eldritch horror ♥♥♥♥ happen, Wyll's patron being a fiend is such a missed opportunity.

A warlock with a Great Old One patron rarely has any kind of personal relationship with their patron. The player handbook suggests they are likely entirely indifferent to you, if they are even aware of your existance, so a Great Old One patron would honestly be pretty boring in terms of interactions.

That is just a PHB suggestion though, there are plenty of other PHB details that went out the window in BG3 like most Dragonborn having coppery scales as the bloodlines mixed over time, or not having tails - which player options aside, both are ignored by the handful of Dragonborn NPCs we do see.
If Larian were so inspired we could have seen a really cool Great Old One warlock dynamic.