diff --git a/types/owner.go b/types/owner.go
index 9886a05..e546576 100644
--- a/types/owner.go
+++ b/types/owner.go
@@ -1,5 +1,27 @@
 package types
 
+import (
+	"github.com/google/uuid"
+)
+
+// Based on https://github.com/coder/terraform-provider-coder/blob/9a745586b23a9cb5de2f65a2dcac12e48b134ffa/provider/workspace_owner.go#L72
 type WorkspaceOwner struct {
-	Groups []string `json:"groups"`
+	ID           uuid.UUID `json:"id"`
+	Name         string    `json:"name"`
+	FullName     string    `json:"full_name"`
+	Email        string    `json:"email"`
+	SSHPublicKey string    `json:"ssh_public_key"`
+	// SSHPrivateKey is intentionally omitted for now, due to the security risk
+	// that exposing it poses.
+	// SSHPrivateKey   string                   `json:"ssh_private_key"`
+	Groups          []string                 `json:"groups"`
+	SessionToken    string                   `json:"session_token"`
+	OIDCAccessToken string                   `json:"oidc_access_token"`
+	LoginType       string                   `json:"login_type"`
+	RBACRoles       []WorkspaceOwnerRBACRole `json:"rbac_roles"`
+}
+
+type WorkspaceOwnerRBACRole struct {
+	Name  string    `json:"name"`
+	OrgID uuid.UUID `json:"org_id"`
 }