1. Who is the beast Titan Eren’s dad?
2. Is Eren dad the ape titan?
3. Why did Eren’s dad turn Eren into a Titan?

Who is the beast Titan Eren’s dad?

The Identity of the Beast Titan In the manga, his identity is eventually revealed as Zeke Yeager, who as you might expect, is related to Eren (though the surname name is spelled Jaeger in the anime). Zeke is Eren’s older half-brother. They have the same father, Grisha.

Is Eren dad the ape titan?

Nope. The Beast titan is his half-brother Zeke Yeager. Grisha (Eren’s dad) was killed by Eren after the former injected the latter with a titan injection in order to eat him and inherit his titan powers.

Why did Eren’s dad turn Eren into a Titan?

He believed that, a non member of the royal family should be able to use its power and so he called Eren into the forest, turned Eren into a mindless titan by giving him the injection, which is a serum that transforms Eren into a mindless titan.