Griffins (or Griffons) are a well-developed sapient hybrid species. They are a hybrid of an eagle and a lion, they use their talons to grip weapons and have been shown to have flexible tails that they can use like a talon to grip objects.
Before the War
During the War
It is stated that the Mane 6 were sent as envoys for Equestria to the Griffin Kingdom. Griffins were used as mercenaries during the war; they fought on the ponies' side (according to Rainbow Dash) during a conversation she had with Applejack and Rarity
In a voice recording left behind by Rainbow Dash, it is revealed that Gilda was hired as a mercenary to kill her by the Pegasi.
After the War
After the Great War, the Griffins were still employed as mercenaries across the Equestrian Wasteland. Red Eye has a number of Griffins under his employ since the Goddess' plan involved wiping them out.
The Griffon mercenaries are known collectively as Talons. The type of work they do varies from company to company; Gawds Talons are less willing to take on jobs that will harm innocents whilst Stern's are more than happy to do such work.
The Griffin Kingdom was raided by The Grand Pegasi Enclave for resources after they closed up the sky and mined their own resources above the sky dry.
Gilda: Rainbow Dash's friend from before the war. It is hinted she was a mercenary before the war ended and was sent by the Enclave to kill Rainbow Dash and retrieve her head.
Gawdyna Grimfeathers, called Gawd for short: Merc hired by Dead-Eyes to watch the area between Shattered Hoof and Junction R-7. She takes over Shattered Hoof after his death and goes on to build a powerful company of Talons.
Stern: A Griffin employed by Red Eye. Stern was killed by Xenith and her daughter Xephyr as revenge for his crimes against them.
Blackwing: A Talon who ran her own company of Talons and joined up with Gawds Talons at Shattered Hoof and took monetary Jacks Children there as well.
In Other stories
Carrion: A Griffin ghoul that has been around since the end of the great war. Carrion became a ghoul whilst obeying the terms of his contract and had been passed on to various employers over the years.
Henrietta: A griffon whose father was killed by a rival group of Talons. She makes recurring appearances throughout the story. Henri works as a mercenary along Route 52.
The Last Sentinel
Azrael Razorwing: A griffin-pony hybrid, her mother being a pitch black unicorn and her father being the head of the Razorwing family. She accompanies Frost Windchill after the siege of Stalliongrad by the Dead Boys in a bid to draw attention away from her father and brother.
Javahl: A griffin ghoul and one of the leaders of the Dead Boys. He was an astronaut before the war who disappeared under mysterious circumstances.
Horvahd: A griffin who acts as one of the leaders of the Dead Boys. He is also the most peaceful of the Dead Boys leaders, willing to negotiate before attacking.
Langson: A member of the Dead Boys who was extorting the Razorwing family for money.
Garador Razorwing: The father of Azrael Razorwing and Silas Razorwing. A former member of the Dead Boys who went rogue with the rest of his family.
Silas Razorwing: The youngest member of the Razorwing family. Silas acts as a mercenary and was the main provider for the Razorwing family prior to their departure from Stalliongrad.
Vulkan: One of Razorbeak's most trusted talons and a personal friend of his who helped him found his Talon company.
Magnus: Like Vulkan, a trusted member and leader of Obsidian Equestria.
Guise of Chaos
Ashred: A Griffin who hires out his contract to potential clients. He works for whoever pays him and holds his contract. Ripple currently holds his contract.
Cutter: Ashred's brother, originally working side by side with his older brother. Cutter was captured by Hate and the paragons who removed his wings. He is a notably large and muscular griffin in comparison to his thinner and more agile brother.
Murky Number Seven
Ragini - Personal bodyguard and trusted slaver of Protégé. Ragini is a skilled sniper and is a trusted and reliable member of Protégé's workforce.
Tales of a Courier
Tallie: The daughter of two griffin slavers that were killed by an assassin. She accompanies Clover on his quest of vengeance.
Anywhere But Here
The Tartarus Contingency
Hokey: A gunslinger with strong emotional ties to her mercenary heritage, working for a vigilante faction known as the Regulators.
Beaks: A slave trader and father to Stern. He is killed during a fight against Pron.
Gold: A griffin mercenary and Lucky’s one permanent companion. His equish is not as good as others and he doesn’t tend to talk in full sentences.