Mal Duncan (Earth-16) has appeared 7 times in indexed Justice League stories.
| Appeared As | Appeared In | Notes | Portrayed by | |
|---|---|---|---|---|
| 10 | Other Characters | Young Justice 1x10 "Targets" | Student. Bigger than the rest, hangs out with Karen Beecher. Stands-up for Marvin against Conner. | Kevin Michael Richardson |
| 16 | Cameo Appearances | Young Justice 1x16 "Failsafe" | Doppelgänger created inside a telepathic training scenario. Shown listening to Superboy and Miss Martian's broadcast. | N/A |
| 18 | Other Characters | Young Justice 1x18 "Secrets" | Dressed as "Superman" done right. | Kevin Michael Richardson |
| 19 | Cameo Appearances | Young Justice 1x19 "Misplaced" | At Happy Harbour High School looking after the younger children. | N/A |
| 601 | Supporting Cast | Young Justice Invasion 2x1 "Happy New Year" | Bumblebee's boyfriend, a former High School friend of Superboy and Miss Martian. He acts as the Team's operations manager coordinating communications from Mount Justice when Nigthwing is in the field. | Kevin Michael Richardson |
| 604 | Supporting Cast | Young Justice Invasion 2x4 "Salvage" | Watching the deployment of the Zeta-Beam shield. | Kevin Michael Richardson |
| 606 | Supporting Cast | Young Justice Invasion 2x6 "Bloodlines" | Unwittingly lets Impulse escape when he returns to the Cave. Mal's full name is Malcolm. His teleporter ID is A-01. | N/A |