Although this character doesn't take part in the main mission, he's part of a support squad that trains new recruits and provides back-up during hostage rescue missions. He's a professional's professional who appears and disappears sporadically and is recognized by all as an expert at hostage rescues. Since he appears in the guise of a rebel grunt during missions, he's rumored to be a former mercenary or a rebel army soldier, but his true identity remains unclear. One mustn't forget that behind the flashy success of missions are the steady efforts of pros like him.
- He is the only character that has been excluded from appearing in Metal Slug Defense.
|Heroes||Marco Rossi | Tarma Roving | Eri Kasamoto | Fio Germi | Trevor Spacey | Nadia Cassel | Ralf Jones | Clark Still | Leona Heidern | Walter Ryan | Tyra Elson | Roberto Nicola | Nathalie Neo | Alisa Stewart | Gimlet | Red Eye | Tequilla|
|Support||Hyakutaro | Rumi Aikawa | Madoka Aikawa | Utan | Issenman Tarou | Eris|
|Villains||Donald Morden | Allen O'Neil | Abul Abbas | Rootmars | Amadeus | Evil Spirit Incarnate | Ptolemaios | Invader Queen | Allen Jr. | Oguma | Macba | Hilde Garn | Unknown Alien|
|Instructors||Sophia | Margaret | Lilly | Mary | Cynthia|
|NPC||POWs | Parker | Satiko Suzuki | Scott Amundsen Jr. | Miner | Genie of Lamp | Orca | President | Sailor | Rebel NCO|
|Cameos||KOF Team | Battle Cats|
|Unused||Achilles | Tabomba | Ptolemaios|
|MSA Newcomers||Scotia Amundsen | Pharaoh | Red Goblin | El Dorado | Professor | Dragunov | MS-Alice | Abigail | Vatn | Yoshino | Odette | Beatriz | Caroline | Cleopatra | Vita | Annette | Jin|