Jaco

"They all crack sooner or later."

- Jaco to Sarge about Pax.

Jaco is a supporting antagonist in Season 6 of the TV series Marvel's Agents of S.H.I.E.L.D. He is a mercenary and scientist as well as a member of a team led by Sarge in his quest to destroy the Shrike and kill their creator Pachakutiq.

He is portrayed by Winston James Francis.

Past
At some point in his life, Jaco was recruited along with Snowflake, Pax and Tinker by Sarge into his team of mercenaries in his mission to wipe out the Shrike and destroy their leader Pachakutiq. Due to his home planet's atmosphere consisting of different chemicals, Jaco steals chemicals during the the journey so he can breathe the effects.

Arrival on Earth
When the Shrike arrived on Earth, Sarge sent his subordinates to make sure that the pathway was clear for him and his truck. As Jaco arrived, however, he witnessed Tinker crossing into a cement wall, killing him. He then reunited with Snowflake and Pax and told them about Tinker's death and that Sarge's path was blocked by a museum. The three succeed in destroying the museum and Sarge arrived without trouble despite the interference of S.H.I.E.L.D.

After robbing a convenient store for supplies, the four learn that Tinker had the crystals in his pocket when he turned into cement. Needing more, the four robbed a jewellery store and stole the crystals they had. During this time, he and Snow fought May but she was defeated when Sarge intervened. He and Sarge then tested the weapon with Earth's crystals and successfully uncovered where the Shrikes were located.

Captured
After some time, the team tracked down a man possessed by a Shrike and killed him. They then tracked down a man named Deke Shaw but he didn't behave like any other Shrike hosts. After S.H.I.E.L.D. arrived and saved Deke, Jaco was trapped in his Framework, confusing him. Jaco was then kept in S.H.I.E.L.D. custody but refused to talk.