Opening/second match rudo in the last of the 00s, and appears to be making steady progress. Spent the first couple of years almost exclusively opposing brother Tiger Kid in tag and trios, then convinced his brother they ought to be a rudo team. Developed into a really fun rudo team by 2009 and show great promise for the future.
For the first years of the career, Puma King and Tiger Kid claimed to be sons of an unnamed Casas family member who was not in the wrestling business. (There was one early exception, where Tiger Kid gave his true parentage away to HalconNet magazine, but was contradicted many more times later.) The whole family kept the charade going until the June 7th SuperLuchas (#367), where Felino revealed what many had suspected: he was Puma and Tiger's father. Felino had been keeping it quiet so the boys would succeed or fail on their own merits, not because they were "Felino Jr." and "Hijo de Felino".