11:32 BST
Thomas Copeland
Live reporter
Image caption,
Catherine (R), Melissa (L) and Tom (behind the circle skull in case you cannot see him)
Hello from the ExCeL, where I’ve just arrived for my very first game show and comic con!
I’m here to take in all the sights and sounds of the most colourful day in the comic book calendar.
On the train, I met Catherine Mariah, dressed in a handmade Beetlejuice-inspired costume that even lights up.
Mariah has convinced her younger siblings, Melissa and Tom, to come along this year.
“There’s panels, games, displays,” Catherine tells me, “and my favourite part is meeting other people who are cosplaying.”
“By the end of the day you’ll be sad it’s all over – you’ll have the Con Blues!”
The Mariah family are ready, and so am I, so stay with me for light saber battles, cosplay contests, hit voice actor reunions, the appearance of a Pokémon star and lots, lots more!