Conversation so far:
What film did Steven Seagal first work on?
Above the Law
Did anything interesting happen while making the action movie, Above The Law?
What other action movies did Steven Seagal make aside from Above The Law?
On Deadly Ground
Did Steven Seagal's movies do well?
all were box office hits, making him an action hero.

Question: what other work did he do at this time?
Self-contained rewrite: what other work besides movies did Steven Seagal do during 1980s-1990s?