Miguel Gredilla García, better known as Janfri Topera, is a Spanish actor.

Trained in theater, he has appeared as an extra or supporting character in numerous Spanish productions such as La verdad de Laura, Rosa Rosae, El oro de Moscú, and El robo más grande jamás contado. He has also worked in television, with occasional appearances in series such as Paco y Veva, Los ladrones van a la oficina, Al salir de clase, Querido maestro, Manos a la obra, Aquí no hay quien viva, Plaza de España (2011), and Con el culo al aire (2013).

Director Javier Fesser has given him important supporting roles in his films, and he plays a significant part in the plots of El milagro de P. Tinto, La gran aventura de Mortadelo y Filemón, and Mortadelo y Filemón. Misión: salvar la Tierra.