123zc is a YouTuber and a former backroom member of the SiIvaGunner channel.
Before contributing to SiIvaGunner, 123zc was mainly notable for doing a YouTube series called SiIvaGunner Explained, which explored various parts of the channel's history.
On February 19, 2021, 123zc announced that he had left the SiIvaGunner team.
Some of 123zc's contributions include "Circus (Remix) - Five Nights at Freddy's", "Doctor Louie's Interior - The SpongeBob SquarePants Movie", "Trilobyte (Castle) - Rogue Legacy and "Chef Surprise - Runescape". He also made six segments for "Stage Select (Full Version) - Mega Man 3".
123zc is also known for providing visuals for rips, notable examples of this are "Welcome to the StreetPass Islands - Ultimate Angler / StreetPass Fishing","Lifelight Fusion Collab" and "MAXIMUM QUALITY ACHIEVED".
He also did voice acting for rips, such as in "The Lost Rip - A SilvaGunner Christmas Comeback Crisis Side Story", "Circus (Insurance Mix) - Five Nights at Freddy's" and "The SiIvaGunner Spooktacular Halloween Horror Special Part III: Episode 3".
- "123zc" - YouTube playlist of 123zc's contributions.