The actor said he finds "penance" in the roles he takes on, "to show accepting responsibility for" his own past behaviorBill Murray is explaining how he sometimes seeks atonement through the characters he plays.

On Sunday, the Riff Raff actor made a surprise appearance at the Sundance Film Festival to reflect on his career in the Elvis Suite presented by Darling&Co. Among his many musings, Murray shared that the roles he finds most rewarding are complicated characters.

Bill Murray seeks redemption through the messed-up characters he plays, making up for the damage he’s done over the years.

Bill Murray is coming clean about past instances of questionable behaviour — albeit without going into specifics. Murray, 74, made an unscheduled appearance at the Sundance Film Festival on Sunday and spoke about his film career and roles playing complex characters.