| SLUGA | Simon ..... , Croatia and 2019-22 Luton goalkeeper (5) |
| SIMON | 2019-2020 Croatia and 2019-2022 Luton goalkeeper (5) |
| KIOSO | Peter ..... , Rotherham and 2020-22 Luton defender (5) |
| ANWAR | Cardiff, 2015 Holland and 2019-22 Aston Villa winger (5,2,5) |
| OKOYE | Maduka, Udinese and 2019-22 Nigeria goalkeeper (5) |
| KUCKA | Juraj ..... , Slovakia and 2019-22 Parma midfielder; 2021-22 Watford loanee (5) |
| PIVAC | 2014-19 Scarlets and 2019-22 Wales rugby union coach (5) |
| WAYNE | 2014-19 Scarlets and 2019-22 Wales rugby union coach (5) |
| CHONG | Birmingham and 2019-22 Man United winger (5) |
| BLAIR | Motherwell and 2019-22 Ross County midfielder (5) |
| BATTH | Norwich, 2009-19 Wolves and 2019-22 Stoke defender (5) |
| DANNY | Norwich, 2009-19 Wolves and 2019-22 Stoke defender (5) |
| IWATA | Birmingham and 2019-22 Japan midfielder (6,5) |
| DELPH | Fabian ....., 2014-19 England and 2019-22 Everton midfielder (5) |
| ARIBO | Joe ..... , Nigeria, Southampton, 2015-19 Charlton and 2019-22 Rangers midfielder (5) |
| DRMIC | Josip ..... , Dinamo Zagreb, 2012-19 Switzerland and 2019-22 Norwich striker (5) |
| MANGA | Bruno Ecuele ..... , Gabon, Niort, 2014-19 Cardiff and 2019-22 Dijon defender (5) |
| NANAI | 2015-19 Blues and 2019-22 Worcester Warriors wing/full-back (6,5) |
| ISTED | Harry ..... , Charlton and 2017-23 Luton goalkeeper (5) |
| STECH | Marek ..... , Mansfield, 2014 Czech Republic and 2017-20 Luton goalkeeper (5) |
