Raiding with Leashes IV: Wrath of the Lick King

These are confirmed to be Boss Drops from the 3 Wrath of the Lich King raids (with more than 1 boss*), Ulduar, Trial of the Crusader, and Icecrown Citadel, with a "not too bad" droprate.
*Naxx excluded due to being a part of Raiding with Leashes, and VoA excluded because its VoA.

Raid size (10 v 25) and Difficulty (Normal v Heroic, or Hard Mode) should not have any effect on drops or chances to drop for these pets.
- There is a possibility this does not hold true for the 2 pets dropped by [npc=36597], as there are many reports that [item=142098] has only been obtained from Normal mode, and [item=142099] has only be obtained from Heroic mode.

ITEM

PET

BOSS

[zone=4273]:(Timewalking version also)

[item=142086]

[npc=115138]

[npc=33118]

[item=142087]

[npc=115139]

[npc=33186]

[item=142088]

[npc=115140]

[npc=32857],[npc=32927],[npc=32867]

[item=142089]

[npc=115141]

[npc=33515]

[item=142090]

[npc=115142]

[npc=32845]

[item=142091]

[npc=115143]

Freya

[item=142092]

[npc=115144]

[npc=33350]

[item=142093]

[npc=115145]

[npc=33288]

[zone=4722]:

[item=142083]

[npc=115135]

[npc=34796],[npc=35144]&[npc=34799],[npc=34797]

[item=142084] - Low drop %, not part of the achievement.

[npc=115136]

[npc=34796],[npc=35144]&[npc=34799],[npc=34797]

[item=142085]

[npc=115137]

[npc=34564]

[zone=4812]:

[item=142094]

[npc=115146]

[npc=36612]

[item=142095]

[npc=115147]

[npc=37813]

[item=142096]

[npc=115148]

[npc=36678]

[item=142097]

[npc=115149]

[npc=36853]

[item=142098]- Likely only from Normal mode.

[npc=115150]

[npc=36597](NORMAL)

[item=142099]- Likely only from Heroic mode.

[npc=115152]

[npc=36597](HEROIC)

Achievement Reward:

[item=142210] which leads to [item=142100]

[npc=115158]

16 pets are drops, with the achievement reward being a special invitation quest which leads to a pet.

1 extra pet, [item=142084] can drop from The Northrend Beasts in ToC as well, but has a lower drop chance so was not counted as part of the achievement.

5.1 raid pets - Raiding with Leashes
5.3 raid pets - Raiding with Leashes II: Attunement Edition
6.1 raid pets - Raiding with Leashes III: Drinkin' From the Sunwell
7.3 raid pets - Raiding with Leashes V: Cuteaclysm
8.1.5 raid pets - Raiding with Leashes VI: Pets of Pandaria

For those wondering about "Lick King", it may be a reference to a joke made by Arthas (part of the ubiquitous "click them long enough and they say funny stuff" bit Blizzard has done for almost twenty-five years, lol) in Heroes of the Storm: "It’s Lich King, not Lick King. The two are very, very different jobs."

The pets are not on personal loot, so you have to roll for them when you go farm with your friends.