Henderson (The Seeds of Doom)

Sergeant Henderson was a UNIT officer.

Under Major Beresford's orders, he helped the Fourth Doctor rescue Sarah Jane Smith and Scorby from Harrison Chase.

Henderson was later knocked out by Chase, who then put him into his compost shredder machine, killing him. When Chase later confronted Sarah in the compost machine room, he told her: "The sergeant is no longer with us. He's in the garden. He's part of the garden." (TV: The Seeds of Doom)