Masked Singer UK fans 'know' who Otter is after major clue - but it's not Kate Bush

The Masked Singer UK fans think they know who is behind the Otter mask, after the first episode on Sunday night.

The ITV series returned with six new characters on New Year's Day, with Ghost leaving at the end of the first episode.

Ghost was unmasked as Chris Kamara on the night, leaving the panel stunned and viewers thrilled.

But ahead of six more acts performing next week, Sunday's characters Cat & Mouse, Jellyfish, Knitting, Otter and Phoenix remain masked for the time being.

That said, viewers are now convinced they know who Otter is - after initial guesses included singer Kate Bush, actress Emma Thompson and musician Toyah Willcox.

The Masked Singer UK fans think they know who is behind the Otter mask (ITV)

Clues for the character included a swimming pool with a sign that had words including 'diving' on - while fans noticed the first letter of each word spelled out RADA, which could stand for The Royal Academy of Dramatic Art.

Otter sang the Baywatch theme song I'm Always Here, while other clues included a rubber duck, being "a little bit naughty" and a four leaf clover.

They also said they are known for "their resilience", and suggested they were known for making a splash - while their final riddle was: "Children, some say, should be seen and not heard, but of this Otter, I'd say, opposite is the word."

Viewers began to speculate the identity of Otter, and soon came up with comedian and actress Dawn French (ITV)

Viewers began to speculate the identity of Otter, and soon came up with comedian and actress Dawn French.

Dawn famously made a splash in a scene in her comedy hit The Vicar of Dibley, when she jumped into a huge puddle.

The quote being the "opposite" of "seen but not heard" would suggest she's often heard and not seen.

While this might not match Dawn's roles, she has appeared in animated films and TV series offering her voice to characters.

Meanwhile, others were convinced Otter had to be Kate Bush due to their similar vocals (Getty)

Dawn has also performed a radio comedy, while she has done advert voiceovers too.

Taking to Twitter, viewers began to speculate that Otter was disguising their real voice and that Dawn was under the costume.

One viewer said: "Dawn French for Otter," as another said: "I mean why am I thinking Dawn French is the otter???"

A third fan added: "Why am I thinking Dawn French for otter?" while a fourth tweeted: "I really think Otter might be @Dawn_French her voice, mannerisms etc.."

Meanwhile, others were convinced Otter had to be Kate Bush due to their similar vocals.

The Masked Singer continues next Saturday at 7pm on ITV1 and ITVX