I fyou re the kind of Happy Days<br > fan who has never missed a sin-<br > gle episode， Chachi Arcola is as<br > familiar to you as the boy next<br > door. And if you re that same die-<br > hard Happy Days fan and now<br > a Joanie Loves Chachi fan， too，<br > you ll know that the actor who<br > plays Chachi is Scott Baio.<br >Will the real Scott Baio please stand<br >up?<br > Scott Baio and Chachi Arcola have the same fa(<br >and they have the same voice， but how else al<br >they alike? And how are they different? Sin(<br > i ) " " "<br >Chach doesn t hke to give interviews， I went 1<br >Scott to find the answers.<br > "It s easier if the character you re playing ha<br >some of you in it，" Scott told me， " so I just put<br >little bit of me in him， little reactions here an<br >there. But most of the time， he s just a characte<br >