( EW.com ) -- The mother has a voice : Meg Ryan has been cast as the narrator for CBS ' `` How I Met Your Mother '' spinoff . EW : 'How I Met Your Mother ' spinoff casts lead role . The actress has landed the unseen vocal role in the `` How I Met Your Dad '' pilot , which is considered an obvious front-runner for a series order for CBS ' schedule next season . She 'll supply the voice of `` future Sally '' ( played during the series in flashback by Greta Gerwig ) , the same way Bob Saget supplied the voice for future Ted in `` HIMYM . '' Like Saget , her character will never be seen . EW : 'How I Met Your Dad ' : Why Greta Gerwig casting is a good sign . Ryan is one of the original modern-day rom-com movie stars , having launched her career in 1989 with the hit `` When Harry Met Sally . '' She 's since appeared in `` Sleepless in Seattle , '' `` In the Cut , '' and had a recurring role on Showtime 's `` Web Therapy . '' `` How I Met Your Dad '' is her first major prime-time TV series regular role . CBS and studio 20th Century Fox TV had no comment . See the original story at EW.com . CLICK HERE to Try 2 RISK FREE issues of Entertainment Weekly . © 2011 Entertainment Weekly and Time Inc. All rights reserved .
Ryan will be the narrator . She will supply the voice of ` ` future . '' Like Bob Dylan on ` ` stage , '' she wo n't be seen .