Freedom Fighters: The Ray
- "Episode One" Darrel/Dollman and Black Arrow (special guest star)
- "Episode Two" Darrel/Dollman and Black Arrow (special guest star)
- "Episode Four" Black Arrow
- "Episode Six" Black Arrow (special guest star)
- Mercer has played a number of DC characters previously:
- Joseph "Icepick Joe" Crimple in Beware the Batman.
- Lonnie Machin/Anarky in Batman: Arkham Asylum.
- A guard in Justice League: War.
- A mech guard and wealthy jock in Batman Unlimited: Animal Instincts.
- Tim Drake/Robin in the Batman: Arkham Knight Arkham episode "Batgirl: A Matter of Family".
- Hellhound and Chuckie Sol in Batman: Bad Blood.