|First appearance||S2E01: Fugitivus|
|Last appearance||S2E04: Empty Hands|
|Profession|| Gladiator (House of Batiatus)|
|Relationships|| Crixus (Friend, deceased)|
Rhaskos (Friend, deceased)
Fortis (Friend, deceased)
Liscus (Friend, deceased)
The Veteran (Friend)
|Status||Deceased (Tortured by guests, then killed by Ilithyia)|
Acer followed Crixus in the days after escaping the ludus, bringing food and game along with Rhaskos, but also expressing disgust at having to share it.
The Rebels later take leave of the sewers and take control of a villa. Acer and Liscus are the only two wounded, noted as an act of recklessness. After celebration on one night, the Rebels are deciding what to do next as Naevia is discovered to be dead. Acer refuses to follow up with Agron, leading to a short confrontation with Donar. Eventually he and the other Gauls are calmed by Crixus who annnounces they're going with Spartacus and Agron.
It is eventually discovered, however, that Naevia is alive and Agron lied about it. A rift forms within the Rebels with the majority moving with Agron to Vesuvius and Acer and many others going with Crixus and Spartacus to find Naevia.
At the feast held in Varinius' honor, the prisoners are paraded before the guests, with the announcement that one of them to be tortured to death for their amusement, as retribution for the slaughter of Batiatus and his guests. Lucretia is given the honor of choosing the victim, and she picks Acer.After he curses his captors defiantly, Acer's tongue is cut out by Seppius. His body is then slowly mutilated by several other guests (including Cossutius, Gallienus and Mercato). Varinius gives Seppia the honor of dealing the final blow, but when Acer looks into her eyes, she cannot bring herself to kill him. Ilithyia, eager to gain Varinius' attention, takes the chance and casually ends Acer's life with a sword-thrust to the abdomen.
- Alex Way, the actor who played Acer, is 187cm (6'2") tall.
- Acer's death is the slowest and most graphic of any character to date.
- Acer is one of many gladiators presented in Vengeance that did not appear in Blood and Sand.
- Acer's name is among those that are shouted at Crixus' funeral his is shouted by The Veteran.
- The name Acer is Latin for 'sharp'.