Ever since the inception of the Marvel Cinematic Universe, Fast & Furious starhas been teasing an unique role in an unnamed MCU film. However, after voicing Groot in's critically acclaimed, many assumed that the fan-favorite hero was the character he had been referring to long before he was cast in Marvel's space adventure.As it turns out, Diesel may have just been scratching the surface with Groot. In an interview with, while promoting's, Diesel let it slip that he'd be open to playing another character for Marvel Studios, even venturing out far enough to say that he had already discussed possibly starring as a very unique character that wouldn't necessarily require his voice. Read his comments below: