I'm noting what effects I used in Audacity here, as it'll be easy to look back on for future reference. 

Baeslan's thoughts:
Echo: Delay of 0.2, decay factor of 0.3
Pitch change: percent factor of -15 

Sage's thoughts: 
Echo: delay of 0.2, decay factor of 0.3

Sage's voice:
No edits, but a stutter that's challenging as hell to do effectively.