I didn't read all the way through so some of these might have been said but:
Molly and Drake could be siblings
Dora and Samson could be siblings
Pango looks like Cyrano's daughter or sister
Bianca and Rold could be siblings
Groucho could be Poncho's dad
Molly and Drake could be siblings
Dora and Samson could be siblings
Pango looks like Cyrano's daughter or sister
Bianca and Rold could be siblings
Groucho could be Poncho's dad