It looks like there’ll be at least one knight in Gwrych Castle this November as ITV producers have reportedly signed up Sir Mo Farah for I’m A Celeb 2020. The runner, who is the most decorated athlete in British athletics history, is likely to be the highest-paid star this series with an estimated £300,000 fee.Worth every pennyAccording to an insider source who spoke to The Sun: The ITV executives were desperate to bag Mo and will have spent big to get their man. It's a massive coup for producers to get Mo for the series. Everyone's really excited about the signing and think he'll be a hit with viewers. It's the first time he's agreed to do anything like this, so it'll be a massive draw for sports fans.In good companyMeanwhile, fellow rumoured I’m A Celeb 2020 campmate Vernon Kay is on course for a £150k pay packet and Coronation Street’s Beverley Callard is said to be making £125k for her appearance. Mo’s reported fee isn’t the biggest in I’m A Celeb history though–last year, Caitlyn Jenner is thought to have earned £500k for her time in the jungle, whilst Ian Wright reportedly received £400k.As well as Mo, Vernon and Bev, former EastEnders star Shane Richie (aka Alfie Moon) has also reportedly been snapped up as the cancellation of panto season freed up his schedule. Fellow former EastEnder Jessica Plummer, whose character Chantelle was recently killed off in a heart-breaking domestic abuse storyline, is also said to be heading to Wales for the show.According to The Sun, the other campmates completing the I’m A Celeb 2020 line-up are ex-Strictly star AJ Pritchard, West End legend Ruthie Henshall, Paralympic javelin athlete Hollie Arnold, news presenter Victoria Derbyshire, opera singer Russell Watson and former Boyzone singer Keith Duffy.