9. Antoine “Trip” Triplett
The reveal that Ward and John Garrett were traitors working with Hydra threw everyone for a loop, Trip (B.J. Britt) included. After leaving Garrett’s team behind, Trip worked hard to prove that he was loyal to S.H.I.E.L.D. and he ultimately did. The character was a breath of fresh air, charming, loyal, and he had a great relationship with Daisy (whose name was Skye back then). He was truly growing into his own, so when Trip was killed off in Season 2, it was a punch to the gut.