Marshal carries White when she passes out by Nimbasa City's Ferris wheel. He gives her to Black and goes on to meet with Alder. He and Alder battle on the Battle Subway, Marshal's Mienshao versus Alder's Accelgor. Marshal does not seem bothered when he loses the battle, smiling at Mienshao and explaining to Black why he lost.
Mashal is next seen joining Shauntal, Grimsley and Caitlin at the Pokémon League. He tries to convince them to actively oppose Team Plasma because N beat Alder, but Caitlin and Grimsley refuse and Shauntal is only interested because it gives her a story idea to write. As Marshal is about to leave on his own, he is stopped by Caitlin who says she'll help because Team Plasma has kidnapped the gym leaders.
Marshal dislikes people without manners. He meticulously keeps track of his win-loss record against Alder and is not bothered when he loses to Alder.
Marshal is Alder's apprentice. Marshal treats him and refers to him respectfully. The two of them get along well, though Alder seems to enjoy teasing Marshal. When they meet, they always have a battle, no matter where they are.
- Marshal has won against Alder two times and lost to him 1076 times
- He keeps a count of them on the inside of his vest