[4] AFL.com.au named him among the best mature-age players ahead of the 2018 AFL draft, noting his marking ability and improved fitness.

[5] Wilkie admitted that he “wasn’t 100% focused on footy”,[6] as he balanced his full-time accountacy career while also playing SANFL up until his drafting to the Saints.

It all happened pretty fast.”[3]James Gallagher, St Kilda's list manager, cited the club's need for a back-up defender if Dylan Roberton's heart problems, which had cut short his 2018 season, continued.

[2] After debuting in the opening round of the 2019 season and showing strong form in the next three matches, Wilkie signed a contract extension with St Kilda to the end of 2021.

[7] Wilkie's showed great promise and immediate AFL competency playing on some of the game's stars in the early part of 2019, including Jake Stringer, Jesse Hogan, Cam McCarthy, Jarryd Roughead and Jack Gunston.

[2] Wilkie capped off an impressive debut season, finishing seventh in the Trevor Barker Award with 115 votes.

[8] Wilkie played all 19 possible games in 2020, including two finals and made another top 10 for the Trevor Barker Award, finishing seventh for a second consecutive year with 113 votes.

He finished the season first for St Kilda's rebound-50s and effective kicks, second for one-percenters and spoils, third for intercept marks.