Big Zeno Clinker

Professor Big Zeno Clinker provided the sound effects for Riders Radio Theater. He was portrayed by Bruce Nemerov.

In Riders Radio Theater (1988-1995)
Clinker first started providing the sound effects on Meltdown on the Mesa episode 105. Prior to this, the Riders' themselves provided the effects.

In The Television Specials (1995-1996)
Nemerov returned to Riders Radio Theater when he reprised his role for TNN's television specials.