Stu Laundy, who is the son of legendary pub owner Arthur Laundy and heir to an estimated $500 million fortune, is believed to be the man in front for Monk's heart.
Adding to the speculation, Stu is 44, and Sophie, 37, had previously said that she was after 'silver fox' with a minimum age of 30.
Of the 18 hopefuls featured in the official photo, eight are in their 20s with the youngest being Apollo and Harry who are both 24.
Appearing on The Project in April, Sophie revealed her ideal man would be aged 30 at the youngest.
Is there an age limit to the men you're looking for?,' panellist Steve Price asked Sophie.
She replied: 'They asked me that and I went 'I'd like 30 because getting younger is a bit weirdo.'
However, she did go on to reveal that a younger suitor wasn't a definite deal breaker.
Expected to enter the show as an intruder, given he didn't appear in the cast photo, Stu had also been previously linked to Sophie. Back in 2016 Laundy is believed to have asked Monk on a date, but the arrangement never happened.
Fans of the show have taken to social media to criticise producers for casting so many young suitors.
We cannot wait for tonight's premiere!