Viscious

Viscious is a super mutant commander in the Master's Army in 2161.

Background
Viscious oversees the operations center in the Los Angeles Vault Level 3 and controls access to the Master.

Other interactions
Viscious will attack the Vault Dweller on sight if they have a weapon drawn, even if they are wearing Cathedral robes. Otherwise, he might question the presence of the Vault Dweller in the vault, and either directs them to the Master for a nullifier, or turn hostile upon learning about their true identity.

If not killed directly by the Vault Dweller, he will be when the Cathedral is destroyed.

Appearances
Viscious appears only in the original Fallout.