<Table> <Tr> <Th> Actor / Actress </Th> <Th> Character Position </Th> <Th> Character Name </Th> <Th> Years of Appearance </Th> </Tr> <Tr> <Td> Khandi Alexander </Td> <Td> Sister to Peter Benton </Td> <Td> Jackie Robbins </Td> <Td> 1995 -- 2001 </Td> </Tr> <Tr> <Td> Bonnie Bartlett </Td> <Td> Mother of Mark Greene . Died early in Season 6 . </Td> <Td> Ruth Greene </Td> <Td> 1997 -- 1998 </Td> </Tr> <Tr> <Td> Michael Beach </Td> <Td> Husband of Jeanie Boulet . Contracted HIV , unwittingly passed it on to Jeanie , died offscreen of AIDS in 2008 . </Td> <Td> Al Boulet ( role played earlier by Bodison ) </Td> <Td> 1995 -- 1997 </Td> </Tr> <Tr> <Td> Wolfgang Bodison </Td> <Td> Husband of Jeanie Boulet </Td> <Td> Al Boulet ( role later played by Beach ) </Td> <Td> 1995 </Td> </Tr> <Tr> <Td> Julie Bowen </Td> <Td> Girlfriend of John Carter . In Season 5 , Carter dated her but then contrived an excuse to break up with her . </Td> <Td> Roxanne Please </Td> <Td> 1998 -- 1999 </Td> </Tr> <Tr> <Td> Lisa Nicole Carson </Td> <Td> Girlfriend of Peter Benton . Claimed he was the father of her baby , later said he was n't ( which was true ) and tried to take Reese away from him but failed to . Later became erratic and vindictive before she died in an auto accident . </Td> <Td> Carla Reece </Td> <Td> 1996 -- 2001 </Td> </Tr> <Tr> <Td> Kieu Chinh </Td> <Td> Mother of Jing - Mei Chen </Td> <Td> Lin Chen </Td> <Td> 2003 </Td> </Tr> <Tr> <Td> George Kee Cheung </Td> <Td> Father of Jing - Mei Chen ( later played by Henry O ) </Td> <Td> Mr. Chen . Suffered permanently debilitating injuries in a car crash in China that killed his wife . Later euthanized by Jing - Mei . </Td> <Td> 2003 -- 2004 </Td> </Tr> <Tr> <Td> John Cullum </Td> <Td> Father of Mark Greene , a military veteran who finally reconciled with his son before dying late in Season 6 . </Td> <Td> David Greene </Td> <Td> 1997 -- 2000 </Td> </Tr> <Tr> <Td> Steven Culp </Td> <Td> Boyfriend of Elizabeth Corday </Td> <Td> Dave Spencer </Td> <Td> </Td> </Tr> <Tr> <Td> Oliver Davis </Td> <Td> Son of Samantha Taggart </Td> <Td> Alex Taggart ( later played by Dominic Janes ) </Td> <Td> 2003 -- 2005 </Td> </Tr> <Tr> <Td> Rebecca De Mornay </Td> <Td> Carter 's cousin 's ex-wife </Td> <Td> Elaine Nichols </Td> <Td> 1999 </Td> </Tr> <Tr> <Td> Garret Dillahunt </Td> <Td> Ex-husband of Samantha Taggart ( Earlier played by Cole Hauser ) </Td> <Td> Steve Curtis </Td> <Td> 2005 -- 2006 </Td> </Tr> <Tr> <Td> Paul Dooley </Td> <Td> Father of Susan Lewis , proved to be a much better parent than his asshole wife . </Td> <Td> Henry Lewis </Td> <Td> 1995 -- 1996 ; 2004 </Td> </Tr> <Tr> <Td> James Farentino </Td> <Td> Father of Doug Ross </Td> <Td> Ray Ross . A charming man with issues not unlike the son he was never a father to . Died in a car accident in 1997 . </Td> <Td> </Td> </Tr> <Tr> <Td> Sally Field </Td> <Td> Mother of Abby Lockhart </Td> <Td> Maggie Wyczenski </Td> <Td> 2000 -- 2006 </Td> </Tr> <Tr> <Td> Frances Fisher </Td> <Td> Mother of Kerry Weaver </Td> <Td> Helen Kingsley . A born - again Christian who gave Kerry up for adoption after giving birth as a teenager . Could not accept Kerry 's homosexuality , leading Kerry to not pursue any further contact with her . </Td> <Td> 2005 </Td> </Tr> <Tr> <Td> Paul Freeman </Td> <Td> Father of Elizabeth Corday </Td> <Td> Dr Charles Corday </Td> <Td> 1998 , 2001 -- 2002 </Td> </Tr> <Tr> <Td> Danny Glover </Td> <Td> Father of Greg Pratt </Td> <Td> Charlie Pratt . Greg 's long - lost father , who Greg located and tried to forgive for abandoning him , but ultimately could n't do so . </Td> <Td> 2005 </Td> </Tr> <Tr> <Td> Rose Gregorio </Td> <Td> Mother of Carol Hathaway , who initially hated Doug and constantly undermined and fought with her daughter , but later was a good and loved parent . </Td> <Td> Helen Hathaway </Td> <Td> 1996 -- 1999 </Td> </Tr> <Tr> <Td> Michael Gross </Td> <Td> Father of John Carter . Ineffectual man whom his son loved but did n't respect . </Td> <Td> John `` Jack '' Carter Jr . </Td> <Td> 2001 -- 2004 </Td> </Tr> <Tr> <Td> Vondie Curtis - Hall </Td> <Td> Husband of Carla Reece ( Earlier played by Victor Williams ) </Td> <Td> Roger McGrath </Td> <Td> 2001 </Td> </Tr> <Tr> <Td> Estelle Harris </Td> <Td> Mother of
<Table> <Tr> <Th> Actor / Actress </Th> <Th> Character Position </Th> <Th> Character Name </Th> <Th> Years of Appearance </Th> </Tr> <Tr> <Td> Khandi Alexander </Td> <Td> Sister to Peter Benton </Td> <Td> Jackie Robbins </Td> <Td> 1995 -- 2001 </Td> </Tr> <Tr> <Td> Bonnie Bartlett </Td> <Td> Mother of Mark Greene . Died early in Season 6 . </Td> <Td> Ruth Greene </Td> <Td> 1997 -- 1998 </Td> </Tr> <Tr> <Td> Michael Beach </Td> <Td> Husband of Jeanie Boulet . Contracted HIV , unwittingly passed it on to Jeanie , died offscreen of AIDS in 2008 . </Td> <Td> Al Boulet ( role played earlier by Bodison ) </Td> <Td> 1995 -- 1997 </Td> </Tr> <Tr> <Td> Wolfgang Bodison </Td> <Td> Husband of Jeanie Boulet </Td> <Td> Al Boulet ( role later played by Beach ) </Td> <Td> 1995 </Td> </Tr> <Tr> <Td> Julie Bowen </Td> <Td> Girlfriend of John Carter . In Season 5 , Carter dated her but then contrived an excuse to break up with her . </Td> <Td> Roxanne Please </Td> <Td> 1998 -- 1999 </Td> </Tr> <Tr> <Td> Lisa Nicole Carson </Td> <Td> Girlfriend of Peter Benton . Claimed he was the father of her baby , later said he was n't ( which was true ) and tried to take Reese away from him but failed to . Later became erratic and vindictive before she died in an auto accident . </Td> <Td> Carla Reece </Td> <Td> 1996 -- 2001 </Td> </Tr> <Tr> <Td> Kieu Chinh </Td> <Td> Mother of Jing - Mei Chen </Td> <Td> Lin Chen </Td> <Td> 2003 </Td> </Tr> <Tr> <Td> George Kee Cheung </Td> <Td> Father of Jing - Mei Chen ( later played by Henry O ) </Td> <Td> Mr. Chen . Suffered permanently debilitating injuries in a car crash in China that killed his wife . Later euthanized by Jing - Mei . </Td> <Td> 2003 -- 2004 </Td> </Tr> <Tr> <Td> John Cullum </Td> <Td> Father of Mark Greene , a military veteran who finally reconciled with his son before dying late in Season 6 . </Td> <Td> David Greene </Td> <Td> 1997 -- 2000 </Td> </Tr> <Tr> <Td> Steven Culp </Td> <Td> Boyfriend of Elizabeth Corday </Td> <Td> Dave Spencer </Td> <Td> </Td> </Tr> <Tr> <Td> Oliver Davis </Td> <Td> Son of Samantha Taggart </Td> <Td> Alex Taggart ( later played by Dominic Janes ) </Td> <Td> 2003 -- 2005 </Td> </Tr> <Tr> <Td> Rebecca De Mornay </Td> <Td> Carter 's cousin 's ex-wife </Td> <Td> Elaine Nichols </Td> <Td> 1999 </Td> </Tr> <Tr> <Td> Garret Dillahunt </Td> <Td> Ex-husband of Samantha Taggart ( Earlier played by Cole Hauser ) </Td> <Td> Steve Curtis </Td> <Td> 2005 -- 2006 </Td> </Tr> <Tr> <Td> Paul Dooley </Td> <Td> Father of Susan Lewis , proved to be a much better parent than his asshole wife . </Td> <Td> Henry Lewis </Td> <Td> 1995 -- 1996 ; 2004 </Td> </Tr> <Tr> <Td> James Farentino </Td> <Td> Father of Doug Ross </Td> <Td> Ray Ross . A charming man with issues not unlike the son he was never a father to . Died in a car accident in 1997 . </Td> <Td> </Td> </Tr> <Tr> <Td> Sally Field </Td> <Td> Mother of Abby Lockhart </Td> <Td> Maggie Wyczenski </Td> <Td> 2000 -- 2006 </Td> </Tr> <Tr> <Td> Frances Fisher </Td> <Td> Mother of Kerry Weaver </Td> <Td> Helen Kingsley . A born - again Christian who gave Kerry up for adoption after giving birth as a teenager . Could not accept Kerry 's homosexuality , leading Kerry to not pursue any further contact with her . </Td> <Td> 2005 </Td> </Tr> <Tr> <Td> Paul Freeman </Td> <Td> Father of Elizabeth Corday </Td> <Td> Dr Charles Corday </Td> <Td> 1998 , 2001 -- 2002 </Td> </Tr> <Tr> <Td> Danny Glover </Td> <Td> Father of Greg Pratt </Td> <Td> Charlie Pratt . Greg 's long - lost father , who Greg located and tried to forgive for abandoning him , but ultimately could n't do so . </Td> <Td> 2005 </Td> </Tr> <Tr> <Td> Rose Gregorio </Td> <Td> Mother of Carol Hathaway , who initially hated Doug and constantly undermined and fought with her daughter , but later was a good and loved parent . </Td> <Td> Helen Hathaway </Td> <Td> 1996 -- 1999 </Td> </Tr> <Tr> <Td> Michael Gross </Td> <Td> Father of John Carter . Ineffectual man whom his son loved but did n't respect . </Td> <Td> John `` Jack '' Carter Jr . </Td> <Td> 2001 -- 2004 </Td> </Tr> <Tr> <Td> Vondie Curtis - Hall </Td> <Td> Husband of Carla Reece ( Earlier played by Victor Williams ) </Td> <Td> Roger McGrath </Td> <Td> 2001 </Td> </Tr> <Tr> <Td> Estelle Harris </Td> <Td> Mother of
who played mark greene 's dad on er
who played mark greene 's dad on er
John Cullum
John Cullum