Could it be a stag beetle? Hope it didn't eat your seeds

Looks like the back end of an earwig.

Agree with Cammomile.

I thought it was a rogue seed to start with, Ive a tomato growing in with the peppers its leaves are different to the ones I,m growing

Your pack of seeds was a poor deal then, that thing will have weighed a bit...

You should take it back to wilkinsons - you pay for seeds by gram so you were short changed.