What is Melinda May's nickname in the "Agents of S.H.I.E.L.D."?

Melinda May’s nickname in Agents of S.H.I.E.L.D. is The Cavalry. Ming-Na Wen plays May, a highly trained S.H.I.E.L.D. pilot, weapons expert, and field operative in the Marvel television series.

The nickname comes from a mission in Bahrain before the events of the series. May single-handedly rescued fellow S.H.I.E.L.D. agents from a dangerous superhuman threat, earning a reputation as the operative sent in when a situation appeared impossible. Although the name celebrates her combat ability, May dislikes hearing it because the mission ended in tragedy.

The show later reveals that the incident involved an Inhuman named Eva Belyakov and Eva’s young daughter, Katya. May’s actions saved the team, but Katya was killed during the confrontation. That loss deeply affected May and helps explain her discomfort with the heroic-sounding nickname.

The Cavalry is sometimes misspelled as “the Calvary.” Calvary is a biblical place-name, while cavalry refers to mounted troops and, figuratively, rescuers arriving in force. In the show, the nickname is both praise for May’s skill and a reminder of her most painful mission.