Liam O'Brien talks about creating Orym before Critical Role Campaign Two and teases more family members to potentially visit in the future. O'Brien's Campaign 3 character, Orym, has interesting ties to Vox Machina and Campaign One as an Air Ashari and former bodyguard of Keyleth's like his father-in-law, Derrig. He has been sent on a mission by Keyleth, which seems to be coming to a head in Campaign Three episodes 50 and 51, which bring together characters from Campaigns One, Two, and Three.

https://screenrant.com/critical-role-liam-obrien-orym-backstory-tease/