Arianna Smythe Castner
- Faction: United Federation of Planets
- Species: Human
- Gender: Female
- Rank: Senior Chief Specialist
- Department: Medical
- Specialization: BiochemistWhenever you activate Frictionless Particle Grenade, this officer grants a chance of receiving temporary immunity to Stun, Root and Slow effects, along with a minor run speed increase.
50% chance: +50% Run Speed for 5 sec and Immunity to Stun, Root and Slow for 5 sec