The original Peacemaker first appeared in Fightin' 5 #40 (November 1966) and was created by writer Joe Gill and artist Pat Boyette.

[1] John Cena portrayed the Christopher Smith version of Peacemaker in the 2021 DC Extended Universe film The Suicide Squad and the eponymous 2022 television series on HBO Max.

Smith learns that his peace-through-violence efforts were the result of a serious mental illness brought on by the shame of having a Nazi death camp commandant for a father, Wolfgang Schmidt.

For a time, the Peacemaker serves as a U.S. government agent under the auspices of Checkmate, a special-forces unit, hunting terrorists until his own behavior becomes too extreme.

[9][10][11] Peacemaker appears in Final Crisis Aftermath: Escape as a detainee and potential recruit of the Global Peace Agency.

On Earth-Four, Christopher Smith is the son of an unnamed diplomat who built a special body armor and fought in troubled areas as Peacemaker.

[23] The Christopher Smith incarnation of Peacemaker appears in Suicide Squad Isekai, voiced by Takehito Koyasu in Japanese[24] and Seán Patrick Judge in English.

[citation needed] The Christopher Smith incarnation of Peacemaker appears in media set in the DC Extended Universe, portrayed by John Cena.