[3][4] On 26 January 2014 he made his debut for Fulham in a 1–1 draw against Sheffield United in the FA Cup fourth round, playing the full ninety minutes.

[18] Passley joined National League South club Whitehawk in February 2017, the team he scored against in an FA Cup second round replay on 16 December 2015 in a match televised live on BT Sport.

After helping Whitehawk secure safety in the National League South Passley left the club at the end of the season.

[23] Following's Dover's decision to not play any more matches in the 2020–21 season, made in late January, and subsequent null and voiding of all results, on 5 May 2021 it was announced that Passley was out of contract and had left the club.

[28] On 4 February 2025, Passley returned to the National League, joining bottom side Ebbsfleet United on loan for the remainder of the season.