Baretta comes to suspect that his close friend, a music store owner, may not only be a drug dealer, but may be unknowingly selling heroin so pure that it is killing his customers.
| Name | Type | Role | |
|---|---|---|---|
| Barbara Baldavin | Guest Star | ||
| Paul Williams | Guest Star | ||
| Norman Burton | Guest Star | ||
| Robert Sutton | Guest Star | ||
| Al Ruscio | Guest Star | ||
| Kim Darby | Guest Star |