'It was tough': Halle Berry admits the hours filming TV show Extant were 'brutal' while breastfeeding baby son Maceo

PUBLISHED: 03:42, 9 July 2015 | UPDATED: 08:34, 9 July 2015

Halle Berry admitted that it was 'tough' making the transition from film star to her weekly sci-fi television show Extant, which requires a lot more hours, while caring for baby son Maceo at the same time.

The 48-year-old discussed the move in an article in Deadline on Wednesday ahead of her return to the annual San Diego Comic-Con gathering.

'It was tough last year. I sort of got my sea legs, as they say. I was nursing my two-month old baby when I started,' Halle said of her first season on the CBS show.

Tough transition: Halle Berry, shown in June in Los Angeles, admitted the transition from Hollywood films to a weekly television show was 'tough' in an article on Wednesday

'The hours were brutal. I just was like a deer in the headlights. This year I was much more prepared,' she added.

The Oscar-winning actress has 21-month-old son Maceo with her 49-year-old actor husband Olivier Martinez.

Halle also has a seven-year-old daughter Nahla with ex-boyfriend Gabriel Aubry.

Sci-fi star: The Oscar-winning actress is shown portraying Molly Woods in a still from the second season of the CBS show extant

Second season: Halle is shown with Jeffrey Dean Morgan who has joined the cast of Extant in its second season

Extant premiered in July 2014 on CBS after the network skipped the traditional pilot stage and ordered 13 episodes.

The show featuring Halle as astronaut Molly Woods was renewed in October for a second season that premiered on July 1.

Halle and Jeffrey Dean Morgan, 49, who joined the cast for season two will headline an Extant panel on Thursday at Comic-Con. They will be joined by executive producer Craig Shapiro and creator/executive producer Mickey Fisher.

Hollywood star: Halle is shown alongside Billy Bob Thornton in a 2001 still from Monster's Ball that earned her an Oscar for Best Actress

Halle will return on Saturday for Fox's film panel in which footage from the home version X-Men Days Of Future Past - The Rogue Cut will be screened.

The actress has portrayed the mutant superhero Storm in four of the live-action X-Men movies.

Halle said that she has enjoyed her past visits to Comic-Con.

'Comic Con is a place I actually love going. I’m kind of disappointed when the years go by that I don’t have a reason to go. It’s all about fans and it’s the one opportunity that I have found where I can just connect to, relate with, talk to my fans, people that are diehard,' Halle said.

Mutant superhero: The actress is shown portraying Storm in the 2006 film X-Men: The Last Stand