In Breaking Bad, was Mike Ehrmantraut 'the guy' that Saul knew could get Walt and Jesse in contact with a meth distributor (Gus)?
Saul: .. What you two need is an honest-to-God businessman. Somebody who treats your product like the simple high-margin commodity that it is. Somebody who ships out of town, deals only in bulk. Someone who's been doing this for 20 years and never been caught.
Walt: You know someone like that?
Saul: Let's just say I know a guy who knows a guy.
Was there any canon source (interviews, commentary on DVDs etc.) to suggest that 'guy' was actually Mike?
Mike was presumably working directly with Fring at that same time he was doing work for Saul, but whether he was leery of Saul knowing he had any connection with Gus/a meth distributor, is not clear.
Now I read that quoted material again, it strikes me as odd that Saul knew "doing this for 20 years" & "ships out of town".. That seems a surprising level of detail for someone who claims just to 'know a guy who knows a guy'.
The wiki concludes it was (probably) Mike. From Mike Ehrmantraut: Season 2..
Saul manages to arrange a meeting with Gustavo Fring for Walter White and Jesse Pinkman to make a deal about selling Walt's Blue Sky. The contact referred to is probably Mike; as Saul says he "knows a guy who knows a guy who knows a guy [Gus]". ("Mandala")