Bryan Cranston plays crystal meth-dealing chemistry teacher Walter White in the cult series Breaking Bad. Credit: Abaca

Breaking Bad star Bryan Cranston has suggested that the cult series may not be finished for good after all.

Asked by CNN host Ashleigh Banfield if his character Walter White was dead, the Golden Globe winner replied: "I don't know."

"You never saw bags zip up or anything, or anybody say... you know."

And asked if there could be another installment of the hit show, he said: "Never say never."