| Lalavava Astronominov
| Character Information
"If that's too much of a mouthful, you can just call me... LALAVAVA." (Thunderclap)
- Olga Astronominov
Lalavava "Olga" Astronominov is a major character from Powerpuff Girls Crossover. She is the younger sister of Mandark.
Olga first appeared in the final season when she was mentioned by Mandark before he died to Dexter. Later when Mandark died she walked in the ruins of his lab and found his glasses knowing he was dead.Continuar in the secornd season.