Conversation so far:
Who played Yoda?
CANNOTANSWER.
Why was Yoda important in this film?
In Revenge of the Sith, Yoda leads the Jedi Council in pursuing the mysterious Sith Lord Darth Sidious.
was he successful in this?
Yoda battles Palpatine in a lightsaber duel that wrecks the Senate Rotunda.
In the end, neither is able to overcome the other and Yoda is forced to retreat.

Question: What else did Yoda do in the movie?
Self-contained rewrite: What else did Yoda do in Star Wars Episode III: Revenge of the Sith besides battling Palpatine in a lightsaber duel that wrecked the Senate Rotund?a