Zac is a fictional character in the original version of the TV series Battlestar Galactica

Battlestar Galactica (1978 TV series)

Battlestar Galactica is an American science fiction television series, created by Glen A. Larson. It starred Lorne Greene, Richard Hatch and Dirk Benedict and ran for one season in 1978–79. After cancellation, its story was continued in 1980 as Galactica 1980 with Adama, Lieutenant Boomer and...

, portrayed by Rick Springfield

Rick Springfield

Rick Springfield is an Australian-born singer-songwriter, musician, and actor. He was a member of pop rock group Zoot from 1969 to 1971 and then started his solo career with his début single "Speak to the Sky" reaching the top 10 in Australia. In mid-1972, he relocated to the United States...

.

He is the brother of Captain Apollo

Captain Apollo

Captain Apollo is the name of a fictional character in the Battlestar Galactica franchise. He was first played by Richard Hatch, who would also later appear as the character of Tom Zarek in the reimagined Battlestar Galactica series in 2005....

 and Lieutenant Athena

Lieutenant Athena

Lieutenant Athena is a fictional character in the original Battlestar Galactica television series, which ran on ABC from 1978 to 1979. The character was portrayed by Maren Jensen.-Character history:...

, and the son of Commander Adama

Commander Adama

Commander Adama is a fictional character in the 1978 movie and subsequent ABC television series Battlestar Galactica and its continuation series, Galactica 1980. Adama is the commander of the great military vessel Battlestar Galactica, commander of the refugee fleet and military commander of the...

 and Ila

Ila (Battlestar Galactica)

Ila of Caprica was the wife, now deceased, of Commander Adama in Battlestar Galactica. She was an off-screen character who was never actually seen, though she was referred to several times through the course of the series, and a likeness of her was briefly shown in the pilot episode...

. On his first flight with his brother, Zac is killed by an unexpected Cylon

Cylon

-Places:United States*Cylon, Wisconsin, a town in St. Croix County, Wisconsin*Cylon , Wisconsin, an unincorporated community in St Croix County, Wisconsin-Science fiction:...

 attack preceding what was intended to be peace negotiations. Zac was played by Rick Springfield

Rick Springfield

Rick Springfield is an Australian-born singer-songwriter, musician, and actor. He was a member of pop rock group Zoot from 1969 to 1971 and then started his solo career with his début single "Speak to the Sky" reaching the top 10 in Australia. In mid-1972, he relocated to the United States...

.

He subsequently appears in Richard Hatch

Richard Hatch

Richard Hatch is an American actor. He is best known for his role as Captain Apollo in the original Battlestar Galactica television series, and also as Tom Zarek in the remake of Battlestar Galactica....

's relaunch novels set after the end of the TV series, having joined the Seraphs

Seraphs (Battlestar Galactica)

The Seraphs were an alien race in the original Battlestar Galactica series from 1978/79 and its spinoff series, Galactica 1980...

 on their Ship of Lights.

Zac's analog in the new Battlestar Galactica

Battlestar Galactica (2004 TV series)

Battlestar Galactica is an American military science fiction television series, and part of the Battlestar Galactica franchise. The show was developed by Ronald D. Moore as a re-imagining of the 1978 Battlestar Galactica television series created by Glen A. Larson...

 is Zak Adama

Zak Adama

Zak Adama is a fictional character on the re-imagined Battlestar Galactica science fiction series.-Biography:As the younger son of the celebrated Commander William Adama and Caroline, Zak felt pressured to join the Colonial Fleet and prove himself to his father...

. Zak faces a similar fate in the new series.