Cheadle plays the Iron Patriot in Iron Man 3, but has admitted that his interest in the world of Tony Stark came only when he grew up.
"As a kid I used to read Spider-Man; I came to Iron Man when I got older," he explained to Parade.
The actor added of his Iron Man character: "Rhodey changed with the times. In the comics he had an afro, then he looked like [baseball great] Cool Papa Bell, then he had a sleek era. It gave me hope that we could go many places with him."
Cheadle previously expressed hopes that Rhodey might feature in the next Avengers movie as a teammate of Iron Man, The Hulk, Captain America and Thor.
He has also suggested that Iron Man 4 will be produced if fans want it, despite Robert Downey Jr's hints that he might leave the franchise.
Iron Man 3 is now playing in the US and the UK. Watch Digital Spy interview the cast below: