Alberto Granado his and Guevara's trip around South America. Granado has a brief cameo following the epilogue of the film. Alberto Granado Alberto Granado Jiménez (August 8, 1922March 5, 2011) was an Argentine–Cuban biochemist, doctor, writer, and scientist. He was also the youthful friend and traveling companion of Che Guevara during their 1952 motorcycle tour in Latin America. Granado later founded the University of Santiago de Cuba School of Medicine. He authored the memoir "Traveling with Che Guevara: The Making of a Revolutionary", which served as a reference for the 2004 film "The Motorcycle Diaries", in which he was played by Rodrigo
Companion (Doctor Who) loses old ones. Sometimes they return home, and sometimes they find new causes—or loves—on worlds they have visited. A few companions have died during their travels with the Doctor. Most companions travel in the TARDIS with the Doctor for more than one adventure. Sometimes a guest character takes a role in the story similar to that of a companion, such as photographer Isobel Watkins, who plays a significant role in "The Invasion" (1968), or Lynda in "Bad Wolf" and "The Parting of the Ways" (2005). In the revived era, some guest characters have gained companion status such as Mickey Smith,