I have a rock gnome barbarian (outlander), a half-orc sorcerer (entertainer), a human celestial warlock (grave robber), and a dog that was true polymorphed into a halfling (ranger). Your character seems a bit tame to me :P

Nothing crazy,  but I have a gnome monk/barb multiclass with tavern brawler feat. He's essentially a drunk pro wrestler who lives up to the feat's name,  and participates in many a tavern brawl. Very fun character

DM let me modify the Barbarian Rage feature to affect DEX instead of STR because he loved my concept: Halfling Spirit Warrior Barbarian, DEX-based, wielding dual-scimitars and toting Mobile, Sentinel, Duelist, and Two-Weapon Fighting (forgot name) feats. His name was Badger and he was the humanoid incarnation of his namesake. Angry, drunk, dirty, viscious, and the guy was a blur of death on the battlefield. Hit-move-hit-move.

I have an Earth Genasi barbarian/rogue who likes to sneak up on people (pass without trace, stealth expertise) and hit them with body parts of slain enemies or the next best thing around (tavern brawler) before he kicks em to the ground (bonus action tavern brawler, athletics expertise) and hits them with a sharpened combat shovel (good to dismember stuff too). And if the enemy is brave enough to ignore him while he tries to get their attention (gladiator background) he will make them pay for it (sentinel feat). You don't like him when he is angry... and he is always.. angry.

How about...

A half elf ranger that prefers great weponds over bows with a young silver dragon as a pet, and he hits on anyone even with his asimar girlfrend two feet away, plus he brings up that he "has a dragon" to the npcs all the time. Even when just buing suplys in the genral store.

Or

A hot headed black dragonborn that uses the ultimat being of darkness(with amnesia) to scare anyone who he cant outright kill or seduce to get his way.

Not so much an idea, as me just telling you about my players.........

How about a human wizard (school of conjuration) that found an ancient sentient artifact that assimilated into him, corrupting him. It uses it’s host as a life source and it’s twisted his personality and giving him a second more twisted one. The original wizard is shoved out of the drivers seat that is his brain and this new artifact+wizard personality now controls the reigns. Now the original is in a constant inner struggle to get back control even for a second and the artifact chills out in the background, it got what it wanted.

I have a player that convinced me to let him play a human wizard that uses charisma as his spellcasting ability. He asked me if this back story was okay.

He wanted his backstory to be a human that would play a mage at a party, and he just got really good at convincing people he was actually casting spells instead of really casting them.

So we gave him a bunch of weird things and basically, we make a lot of the damage psychic instead of what it really is. Every time he casts a spell he says something like "I will kill you with my magic missiles" and then throws like 3 rocks. I make him make a charisma check, if he succeeds the players take the damage the convinced them he did otherwise they take 1 bludgeoning damage.

Its honestly been stupid fun to watch him play.

I have a character I wish I could play. Click, a kenku plaguedoctor. I would roll her as a wizard, school of necromancy probably? She goes around healing the sick and wounded, and researches diseases, curses, you name it. If starting at a higher level, I'd ask DM if she could have periapt of health and give her some deadly disease to start off with that the periapt keeps at bay.

I have a 5e dromite wizard (thanks to a very kind DM), he isn't too crazy mechanically but i play him in the dumbest or least throught out way possible, he is chaotic neutral if thst gives any help to understanding, he does absolutely anything on a whim, if he wants to go explore a dungeon then he will, if he wants to kill a person then he will, in one case the party had entered a tavern of a town who had a deep dislike for anything different than them, it went quiet and tense since a human paladin, dromite wizard and wolf-man sorcerer had just walked in, and my character had thenidea to try and turn a barstool into solid silver to break the silence... it did not end well but he managed to take a chair

My latest character is a Goliath Barbarian girl. Seems like one of the most classic characters ever right ? The twist is that the GM and i decided that she unknowingly passed a Warlock contract with a Celestial as a child and that the powers took a long time to manifest besides her skin getting golden reflects under the sun. The first manifestation was when she became a Storm Herald (of the Desert, for the flames). She only multi-classed to Warlock (Celestial Patron with Pact of the Blade) after 6 levels of Barbarian. And most of the levels will stay as barbarian. I plan on just 6 levels of Warlock with the rest in Barb.

So in the end, it's a (mildly) spellcasting barbarian who is all about flame and light, Lawful Good, and kinda act as mother for the group. Not too weird of a concept but i haven't seen this kind of character before and i like her very much.

I am literally rolling a Kalashtar Inquisitive Rogue right now .
Still unsure on the background, but the Race/Class synergy is just beautiful to me *_*

EDIT: went for Urban Bounty Hunter as background... seemed appropriate and opens up even more RP and information-gathering possibilities

I have a high elf wizard ready for one of our campaigns that I am looking forward to playing.  Not sure how the rest of the party will cope though.  Poor thing has suffered with narcolepsy for hundreds of years - keeps falling asleep whilst casting spells, causing all sorts of mishaps.  I think our DM has some ideas on what could happen that will make life "interesting" for us all.

Using the UA mystic, a human psionic monk-esque immortal (sub class) that grapples people, uses psi points to leap into the air with them (jump is 140 at max, my dm rolled 70 on the grounds that half movement for dragging) and literally dropping them. I got the idea from the seismic toss move from pokemon.

I had this Tiefling Bard named Caliban. His father, being a demon in disguise, was flirting with an angel, so she cursed his son (Caliban) after she realizes he was a demon. The curse made the horns on his head glow in the dark, and be able to burst into flame at will. This was useful for a time, for lighting fires when we were traveling in the far north, but when our druid decided to free horses we found in a market, the Lord came after us and threw us in his dungeon, and said we could only come out once we retrieved his pickles. All of us succeeded our stealth checks to hide from the monster which was inside, but then my horns started to glow. I tried to extinguish the glow, but then they burst into flames, lighting my cloak on fire and revealing our position to the monster (which turned out to be a Froghemoth). The monster was joined by another one, and they slaughtered us all except for our fighter, who managed to deliver the pickles, before he was swallowed by a Froghemoth. They opened the door to let him out, but he didn't have enough movement and the Froghemoth swallowed him. 

Wise Words of The Day: Don't be a demon who flirts with angels, because that angel will curse your son and he will die a horrible death, being swallowed by a frog monster

My Tiefling rogue Amare, whom I only made about a week ago, was the adoptive child of an elderly Drow woman. He lived in a caravan with her until she died, and he was run out by the rest of the caravan, which was made up almost entirely of Drow and a few Orc. He's terrified of fire, and unlike most Tieflings, the pact his family had made was with an ice demon.

I'm also making a Drow character that works in a traveling circus, I dont have much on him yet

Salvador Pozolski - The BARDBARIAN! 

Salvador was raised among a barbarian tribe in the north, carefully crafting his physique to elephantine proportions, and raiding along with his brethren. But Salvador had a secret passion - one he kept hidden from his clan brothers. A passion...for MUSIC!

When his clan learned of his guilty pleasure, he was ridiculed and outcast. Now he roams Faerŭn, with a shield he also uses as a gong, slaying his foes and immortalizing his own conquests in verse! He speaks with a Russian accent and sings off-tune, pounding his shield off-rhythm. 

Mechanically, he's a Barb 3 - Bear Totem/Valor Bard 17. He's a blast to roleplay. A massive, long-haired barbarian singing ribald songs as he casts vicious mockery. His high CHA and performance proficiency mean that you sing a terrible song in a tavern...and get a standing ovation. Much to the chagrin of the other party members. 

I once mad a character that was a Water Genasi Four Elements Monk with the Charlatan background. His whole thing was that h would always try to rip people off by selling them shoddy fake medicines such as "Hobgoblin Oil', allegedly a great cure for hemorrhoids. He also had a pet cat dressed in a shark costume called "Landshark". Landshark was there purelyfor flavor, but I recall I once killed someone with a crit and utilized him in the description. Finally, my Genasi ended up having a horrible Indian accent. Bit silly, but it was always a blast to start yelling things like "HELLO WOULD YOU LIKE SOME HOBGOBLIN OIL?" I only played this guy for a bit in a Hoard of the Dragon Queen game, but he sort of became a legend.

Another character was a Human Circle of the Moon druid who's backstory was that he was a former strong man/ animal trainer. He loved animals to the point that it occasionally became detrimental to whatever mission the party was supposed to do.

I also once played a Tiefling monk who was a luchador for an evil one-shot. His backstory was that he was jailed because he accidentally exploded someone in the ring (he was open-hand). He was able to land the killing blow on a Death Kiss with a folding chair and punch a ghost to death. I'm so proud.

I have a warforged that I hope to play soon.

He was the stand in for a king, as his armor plating was built to look like the kings personal armor. when the king could not fight, warforged m5 :emperor would stand in for him with a great mace.

But as time went on he became inactive a shut down.

During that time the king and his family died off, and left in castle in ruins.

Once emperor was awakened by some curios animals, he quickly learned the fate of the kings family, and home. Now along with whomever the party is, whatever the story is, emperor is searching for a legimeat heir to the throne, as well as grave robed royal armaments(weponds)

Warforged Juggernaut fighter-champion

Edited for typos