During the course of their investigations Barnaby gets his license revoked due to a false accusation, and J.R. joins the ""Center"" to find Diana, who turns out to be the illegitimate child of Mimi Nettleson Chiles of Nettleson Corp. and the leader of the religious cult, Garrison, rejected by Mimi's family.
| Name | Type | Role | |
|---|---|---|---|
| Robert W. Lenski | Writer | ||
| Richard Eastham | Guest Star | ||
| Richard Derr | Guest Star | ||
| Sondra West | Guest Star | ||
| Marlyn Mason | Guest Star | ||
| June Dayton | Guest Star | ||
| Pat Hingle | Guest Star | ||
| Brendan Burns | Guest Star | ||
| Joanne Linville | Guest Star | ||
| Ilene Graff | Guest Star | ||
| Joel Colodner | Guest Star | ||
| Roger Callard | Guest Star | ||
| Renne Jarrett | Guest Star | ||
| Susan Mullen | Guest Star | ||
| Grainger Hines | Guest Star | ||
| Byron Mabe | Guest Star | ||
| Claudia Bryar | Guest Star | ||
| Michael Preece | Director |