| Club | League | Years |
|---|---|---|
| Leeds United | Premier League | 1949–1957, 1962 |
| Juventus | Serie A | 1957–1962 |
| Roma | Serie A | 1962–1963 |
| Cardiff City | Premier League | 1963–1966 |
| Swansea City | Premier League | — |
Only the clubs in the game are in the data; spells at other clubs, loans and youth years may be missing.
Which club pairs is John Charles an answer for?
In Who Played Both, if two of these clubs meet, John Charles is one of the right answers.
- Juventus – Roma 69 players
- Cardiff City – Swansea City 67 players
- Cardiff City – Leeds United 33 players
- Leeds United – Swansea City 25 players
- Leeds United – Roma 4 players
- Roma – Swansea City 4 players
Source: Wikidata (CC0), Wikipedia club articles and player infoboxes (years at each club). Youth spells and appearances that look unplayed are left out; volunteer-kept records can contain gaps or errors.
