In de stripverhalen van Carl Barks komen voor ( personen , spion ) (switch eerste taal) (startpagina) :

1 Agent 4-X Operator 4-X CB.V151 7.3 Spion 1
2 Agent Min-X Operator Minus-X CB.V151 9.2 Spion 1
3 Agent X Operator X CB.V151 4.7 Spion 1
4 Agent XX Operator XX CB.V151 4.7 Spion 1
5 Agent YZX Cloakan Dagger CB.V151 4.7 Spion 1
6 Boktor Fidelov CB.V629 2.5 Spion 1
7 F.B.EI F.B. McEye CB.V151 4.7 Spion 1
8 Georgia Gerstebrood, Miss Georgia Cornpone, Miss CB.V151 28.2 Spion 1
9 Madame Triple-X Madame Triple-X CB.V151 3.7 Spion 1
10 Madame X Madame X CB.V91 8.7 Spion 1
11 Madame XX Madame XX CB.V91 10.4 Spion 1
12 Scotland X. McYard Scotland X. McYard CB.V151 13.8 Spion 1