Dada, a three-faced eccentric, has appeared in the following works:

First generation Altman

Episode 28: Human Specimen 5.6

ULTRAMAN POWERED

Episode 6: Dada Effect

Motorized Altman.

Episode 10: Our Nebula, Episode 18: Direct Strike! 24 hours deep into Xio24.

Monsters vs NEO episode 9: dark armor

But it didn't appear in Ultraman Jack.