Conversation so far:
What is Easy Rider?
Peter Fonda produced, co-wrote and starred in Easy Rider (1969), directed by Dennis Hopper.
What was the movie Easy Rider about?
Easy Rider is about two long-haired bikers traveling through the southwestern and southern United States where they encounter intolerance and violence.
What was Peter Fonda's role in the movie Easy Rider?
Peter Fonda played Captain America, a charismatic, laconic man whose motorcycle jacket bore a large American flag across the back.

Question: Who else was in the movie?
Self-contained rewrite: Who else was in the movie Easy Rider besides Peter Fonda?