The pair, who were wearing stage make-up, fake blood and white contact lenses, were returning from filming online sitcom Dead Town on Sunday.
Steve Lowe and Diane Holden of Ashton-under-Lyne were on the M62 near Warrington when they were pulled over.
Police shared a picture and tweeted "posing as Zombies - takes all sorts".
The pair were filming the third and final episode of Dead Town which is based in Runcorn, Cheshire when the North West Motorway Police officer pulled them over in an unmarked car.
Mr Lowe said the officer burst out laughing when he saw their attire.
"I think he was very surprised; he wasn't frightened but pleasantly amused.
"He asked if he could take a photograph because no-one would believe him back at the station."
Mr Lowe, 60, said he has been dressing up as a zombie for a couple of years.
"It is brilliant; really good fun. There is a big zombie community - it's a nice big zombie family."
A spokesman for Greater Manchester Police added: "No further action was taken."

Three months of work will begin on 8 August on both carriageways of the M74 from J2A Fullarton to J6 Hamilton.
Four months of work will begin on both carriageways of the M8 in mid-August from J8 Baillieston to J10 Easterhouse.
The M73 will be similarly affected for six weeks from mid-September, between J1 Maryville and J2 Baillieston.
The work is part of an ongoing £500m works programme to improve Scotland's motorway network.
Graeme Reid, Project Manager for the M8 M73 M74 Motorway Improvements Project, said: "Transport Scotland is working with the contractor to ensure these works are completed as quickly as possible.
"While we're doing everything we can to minimise the disruption, delays will be inevitable, so we're asking motorists to check the Transport Scotland and Traffic Scotland websites for updates on these key routes, to plan their journeys in advance and to look at taking an alternative route if possible."
The £500m project aims to upgrade central Scotland's busy motorways and significantly reduce congestion.
It has been estimated that the road improvements could reduce the average daily car commute between Glasgow and Edinburgh by 20 minutes.

It follows hours of disturbances during the early hours of 17 March as hundreds of students and other young people celebrated St Patrick's Day.
The Holyland is a residential part of south Belfast popular with students.
Employment and Learning Minister Stephen Farry is to meet residents' representatives on Monday afternoon.
Eleven people were arrested in the area and the city centre over the St Patrick's Day period. One policeman was injured when bottles were thrown at officers in Agincourt Avenue.
A number of vehicles were also damaged and residents complained about excessive noise and litter in their streets.
There has been a history of trouble in the Holyland on previous St Patrick's Days and talks have been held before in a bid to prevent students engaging in anti-social behaviour.
The chairman of the Holyland Regeneration Association, Ray Farley, said the existing measures had not worked and called for Stormont ministers to intervene.
Speaking last Friday ahead of the meeting, Mr Farry said he was "appalled" by the behaviour of some young people in the area but said the majority of them were not university or college students.
However, he added that further steps to address students' bad behaviour would now be considered in light of this year's trouble.

The crash happened early on Monday in the city of Bareilly, 251km (155 miles) from the state capital, Lucknow.
A senior police official said all 22 victims had been charred badly and could not be immediately identified.
The passenger bus had caught fire following the collision. Police are searching for the driver of the truck.
The AFP news agency quoted police as saying the doors of the bus jammed after the collision, trapping passengers inside.
A few people managed to escape by breaking open the windows of the vehicle.
The chief spokesman of the Uttar Pradesh police, Rahul Srivastav, said the bus was carrying 41 passengers, and that those who were injured had been rushed to hospital.
The condition of many of them is said to be serious, and officials warn that the toll is likely to rise.
India has the world's highest number of road deaths, with an accident taking place every four minutes.
Most crashes are blamed on reckless driving, poorly maintained roads and ageing vehicles.
A couple dressed as zombies were stopped by concerned motorway police responding to reports of a woman being assaulted in a car.
[NEXT_CONCEPT]
Drivers are being warned to expect months of "significant delays" on central Scotland's motorways as work begins to install new signage gantries.
[NEXT_CONCEPT]
Residents of Belfast's Holyland are due to meet the minister responsible for universities later to discuss students' involvement in disorder in their area.
[NEXT_CONCEPT]
At least 22 people have been killed after a bus they were travelling in collided with a truck in the northern Indian state of Uttar Pradesh.