Steven T. Seagle is an American writer and producer known for his work in comics and animation. He is a co-founder of Man of Action Entertainment and a co-creator of the hit animated series Ben 10.

Seagle has written for major comic publishers including DC and Marvel, with notable runs on Uncanny X-Men and Sandman Mystery Theatre. In animation, he has contributed to series such as Ultimate Spider-Man and Avengers Assemble.