Suggestions by @kristensilvermoore

Ian McKellen

as Stephen Elizabeth's third husband. in BBC The Thursday Murder Club

Richard Dormer

as Chris (The Detective) in BBC The Thursday Murder Club

David Morrissey

as Chris (The Detective) in BBC The Thursday Murder Club

Martin Freeman

as Chris (The Detective) in BBC The Thursday Murder Club

William Shatner

as Ron, a former trade unionist; in BBC The Thursday Murder Club