Think you know everything there is to know about Barney’s upcoming face-to-face with his estranged father Jerry (John Lithgow)? Well, think again! Because as it turns out, a father won’t be the only new family member Barney meets on the upcoming March 21st episode appropriately titled “Legendaddy.” Joining Jerry will be wife Cheryl (Nancy Travis) and half-brother J.J. (Will Shadley). More first look photos of which can be found after the jump. 
