Yvona

A female humanoid alien, who was captured by Zyzzybalubah and locked in a cage as his "friend" (really his personal slave). Bears a striking resemblance to Miss Yvonne and has similar theme music when she first appears. It is implied by her in Playhouse in Outer Space that Zyzzy has kept Yvona as his slave for years (when she says "It's always been like this."). Yvona is mentioned again when Zyzzy returns home to his planet, but she is never mentioned again in other episodes. Pee-wee seems to develop feelings for her, probably due to her similarities to Miss Yvonne, for whom he also had apparent feelings. This is demonstrated when he sadly says goodbye to her when she leaves.

Played by Lynne Marie Stewart, she is the second character to be performed by this actress.