Productions
Mark Markheim Minuscule Mysteries:
Operation Opposition
Recorded at Studio Bob, San Francisco
| Cast | Mark Markheim: John True Manfred Manning: Glenn Carlson Tommy Todd: Brian Sommer Virginia Valentine: Melissa Hutchison |
| Producer | Glenn Carlson |
| Director | Glenn Carlson |
| First Lines | “Mark Markheim's my monikor. I'm a shamus with a shingle in LaLa land.” |
| Art Design | Marilynn Fowler |