So Lath Lavellan didn't have the best start in life .His name is "Love" , he is a bastard and his Dalish mother young and naive when she got him just ran away to become a city elf when he was still a young kid.
He became very angry bullying others and being a pain in the a** in general until he discovered he was really good at archery and scouting , and he loved it.
He also became BFF with a boy who shared his passion , they became joined at the hips for years .
He spend 10 very happy carefree years, following Andruil's teachings .
Being a hunter and a nomad was running in his blood , and seeing his people longing for a land , magic and lost immortality left him sad and puzzled.
Immortal sounded boring , he wasn't scared of magic but he couldn't care less about it , for him it was the business of Keepers and her apprentice .And having a land ment turning into shems and reminding him of his mother ditching him for the city.
Anyway things went well until puberty hit him a bit late , and he figured out he was in love with his best friends.But that wasn't ment to happen .His best friend was already courting a young elve.
Lath did his Lath and thought he could love his friend in silence and things will go on as they were and everything would be alright.
It didn't last.
The main thing he did in silence was growing jealous and bitter until one day he lash out at his friend fiancee and assaulted her.He didn't kill her but wanted it bad enough it scared him.
His friend kicked his ass as a result and never spoke to him again.
He wasn't thrown out of the clan , but things grew cold.
Older hunters took him under their wings and brought him on long scouting and hunting trip away from the clan and trouble.
He was reaching adulthood and ready to have his valasslin.He always thought he would take Andruil as his main Goddess...but changed his mind.
He didn't like the anger in him , he was ashamed of hurting one of his clan and ruining what he loved because of it and so he turned to Mythal for guidance.Just like she calmed Elgar'nan in the story , he hoped Mythal would bring him peace and clarity.
A couple of years passed , Clan Lavellan started to get threatened by the mages and templars war.
The Keeper wanted to send spies at the Conclave , Lath was one of the hunters protesting they should move further in the forest and not get involved in shemlen affairs.
Nevertheless , the Keeper chose him.
Then well things went BOOM.
Lath freed the mages in Redcliffe mostly because Fiona was an elf .He hated her with a burning passion (selling her own to slavery) but couldn't made her prisonner in the name of a human organisation.
Still he was pro putting human mages in circles where they would be far far away from Dalish clans.
He really loved and trusted Cassandra so he push her for the Divine role .
He didn't agree with Leliana about letting elves in the Chantry , elves should follow their Gods , the Creators , not a God who cares only about humans.
Things got complicated though , he started dating Dorian , a Tevinter mage.First they didn't get along so well but things changed after Skyhold.
Lath spend months thinking about it , he couldn't imagine how his clan would react.
He's against relationship between human and elves on principle since they produce human ...of course it's not a problem with Dorian and him but his own hypocrisy is not lost on him.
Still being a closet romantic he was fully comitted to the relationship whatever people would think about it.
Then the temple of Mythal...meeting the sentinels was like being pushed in the face ..."You are not my People".Lath was hurt , it wasn't really about him , he knew he wouldn't fit any ancient elf bill...it was like all the Dalish people being betrayed by their past.
Then it got worst , the Well of Sorrows ...that's where Lath felt like he betrayed himself and his duty to his People.He should have drank from it , but he was too scared of whatever unknown magic was at work.
Mythal was also something.Mythal was a motherly figure , something ment to appease and guide him on a path to righteousness.
And there she is , standing before him...human shouting about revenge , and her own daughter hates her.
Lath decided to ...not think about it!
It's just one of those thing he couldn't compute without banging in head into a wall.
So his stance was Mythal was having a bad day , but she answered his prayers and helped him defeat Corypheus .And that's all that matters.
So Lath Lavellan killed Corypheus , being an overall nice guy trying to do good...He stayed around to help Cassandra rebuild the Chantry.
Send letters to his clans in Wycome , urging the Keepers to keep their nomadic ways and only use Wycome as a relay.He told the truth about Dorian...but not the fact he gave the last of elven knowledge to a human witch.He informed them Mythal was asheballanar and answered his prayers , but not the part about "too late to help the elves " and "Argh revenge argh!"...he also remained vague about the grumpy sentinels.
He asked her to call for an exceptional meeting of clans , where he will tell the truth and expect to be stoned to death.Picturing himself a martyr sometimes ease his guilt.
Trespasser and its event was also well another turning point for Lath.
He lost his hand , being an archer was such a part of himself , it's terrible.He losts his Gods , ...and the worst : Sera was right.
Sera was always his imbecile little sister , he loved her but he thought she was the stupiest elf he ever met.(he wouldn't call himself intelligent but she just beats him)
The past isn't so important , what is important is taking a stand and saving people when it matters.Elf , mage human dwarf, Tevinter , Qunari whatever....they didn't deserved to be sacrificed on the altar of old elves broken dreams.
So Lath ends up disbanding the Inquisition and joining the Red Jennies to clear his head for a while.
He goes back to Wycome and tell the whole truth , not from a martyr point of view but from a we have to save ourselves from our past.
Still deep down he wants to believe Solas is a misguided God , one who cares for the Elven people and he wants to prove him wrong.
He still prays to Mythal and believe she will come through again and answers his prayers.
The others elven Gods just don't exist anymore for him , he's good at lying to himself and being a hypocrite sometimes but not when it involves worshipping butchers and slavers.
So he goes and cause mayhem , in Orlais , Ferelden , the Free Marches , Tevinter...he does everything to stir elves from Solas and the Qun .Making some of them friends of Red Jennies , equal with humans and dwarves.
He also helps Dorian in the shadows reforming Tevinter.Mostly shanking dangerous magisters and freeing their slaves if possible.
He's very protective of Dorian , having spies watch him to inform him of any danger .
Dorian is also a godsend , screaming after him when he goes too far , and keeping him from giving up thinking Solas might be right and there's no point in fighting.
Although it might take him a few decade to fully process Sera was right all along.Crazy world.