John "Jack" Abbott, Jr. and Phyllis Summers Abbott are fictional characters and a couple from the CBS Daytime soap opera, The Young and the Restless. Jack is portrayed by Peter Bergman and Phyllis is portrayed by Gina Tognoni and formerly Michelle Stafford. Jack is the son of John Abbott and Dina Mergeron. Phyllis is the daughter of George Summers and Lydia Callahan. Phack is the nickname given to the relationship between Jack Abbott and his now ex-wife Phyllis Summers Abbott. Jack likes to call her Red.