Friends often arise when you least expect them. The CBS sitcom “United States of Al” chronicles the unlikely friendship between a combat veteran and an interpreter from Afghanistan, who helped the former while he served in the Marines, but now find themselves trying to readjust to normal life in Columbus, Ohio.

Actor Jimmy Walker, Jr. recently appeared in a recurring role as ‘Walt’, a military veteran who hangs out at the local bar, on the new show from executive producer Chuck Lorre and creators David Goetsch and Maria Ferrari.

This isn’t the first-time audiences have seen Jimmy. His...