Robin - sadly Aston ******* Merrygold
Badger - Ne-Yo, now i heard it too, lesser rock voice but more his real voice
Sausage - Jessie J (around the world clue hinting at she had been a coach on The Voice in another country too ''australia'')
Harlequin - Macy Gray (tracy chapman hint more like they are from around same time making music, also similar styles of soul/r&b)
Dragon - she is british i can confirm that now so it rules out Paula Deen, this isn't Sue Perkins for sure either, this is
Nigella Lawson, and all by myself relating to her very troubled relationship and recovering from that (which had been in media quite a lot too as we all remember)
Viking - Morten Harket 100% sure now, he even did his acoustic version too couple years ago, i prefer this acoustic to the studio version of take on me btw, i also like the version they recorded with Kygo, for charity
Blob - Sir Lenny Henry, i do know him of course, he's such a legend, umm but i didn't know about him being a musician, and did he really record a song with another famous recording artist