Thousands of cosplayers release their inner geek at Oz Comic Con - and some costumes beat the original designs

Cosplayers, anime fans, creatives and nerds have descended upon Sydney Showground this weekend for Oz Comic Con.

One of the biggest comic conventions in Australia, Oz Comic Con annually draws in large crowds as it moves around the nation's capital cities.

Sci-fi and fantasy lovers are able to meet and hear those who work within the industry, from actors, voice actors, professional cosplayers, artists, writers and many more.

Sydney guests were treated to celebrities Brenton Thwaites and Teagan Croft, who star in the DC Universe Series Titans, as well as Giancarlo Esposito, who played Gustavo 'Gus' Fring in Breaking Bad .

All three hosted Q&A panels on the main stage on Sunday.

It's usual for fans to dress as their favourite character to attend the event, with some making extra effort to be declared the Australian Grand Champion of cosplay on Sunday afternoon.

Those who have won the championship round in each respective state will battle it out for national glory.

While many chose human characters to replicate, with superheroes, pirate captains and alien hunters all well represented, others showed off intricate and elaborate costumes of a more supernatural nature.

One attendee chose World of Warcraft character Sha'lor top imitate, covering themselves in fur and painting their face to replicate that of the humanoid.

Another donned a dark cloak and an elaborate face covering to portray Emperor Palpatine from Star Wars.

Edward Scissorhands made an appearance, as did the 1989 iteration of Joker, and anime figure Madoka.

The convention had something for everyone, with lessons in cosplay posing, a Just Dance arcade game competition and video gaming tournaments available.

Some were seen getting tattoos on Sunday, as the convention centre was packed to the brim with costumed fans.