He made a shock comeback as Ali G during the Academy Awards on Sunday evening.

But Sacha Baron Cohen has now admitted he was banned from appearing as his controversial alter-ego during the ceremony and was scheduled to present an award as himself.

The 44-year-old joker confessed he enlisted his wife Isla Fisher's help to sneak his famous costume into the glittering event in order to keep his appearance a surprise.

Scroll down for video

Ali G's back Indahouse: Sacha Baron Cohen has admitted he was forced to sneak his Ali G costume into the Oscars on Sunday night because he was forbidden from doing anything 'out of order' by the Academy bosses

Speaking to ITV's This Morning, Sacha said: 'The truth is we actually had to sneak it in because the Oscars sat me down before and said they didn't want me to do anything out of order.

'They wanted me to actually present it as myself. But luckily my wife put on the Ali G beard in the disabled toilets so we managed to get away with it.'

Sacha also confessed he was nervous about some of the more risqué gags, so ran his act via awards host Chris Rock first.

See Oscars 2016 updates as Sacha Baron Cohen reveals Isla Fisher snuck in Ali G costume

Partner in crime: Sacha's wife Isla Fisher assisted with his stunt, helping him get into costume in the toilets

'I mean there were a few moments I was a bit worried how they'd react to the first gag, but I bumped into Chris Rock actually on the way on and pitched him the gag and he gave me the thumbs up so I went for it.'

Sacha was true to form when he took to the stage as Ali G, joking that there should be an Oscar for the 'very hard-working little yellow people,' before adding he was talking about cartoon characters the Minions at the Academy Awards on Sunday.

The comedy character made a shock comeback at the event, who was last seen on 2014's Ali G: Rezurection.

Da Ali G Show: Sacha Baron Cohen used his old character to poke fun at the lack of diversity at this year's Oscars

White privilege: The audience was hooting with laughter at the funnyman's cracks

Speaking in his trademark Staines Massive drawl, he said: 'Ow come there’s no Oscar for dem very hard-working little yellow people with tiny d***s. You know, the Minions.'

The comic continued to mine the controversy over the claimed lack of racial diversity at this year's event, drawing howls of laughter from the white-majority audience.

Sacha was introducing best picture nominee Room with Olivia Wilde when he decided to speak out in support 'all people of all colors.'

The 44-year-old said: 'I is here representing all of them that’s been overlooked.

United stand: Among those he was supproting was the 'amazing black bloke from Star Wars... Darth Vader'

Controversial: He said there should be an Oscar for 'hard-working little yellow people... the Minions.'

'Will Smith. Idris Elbow. And of course that amazing black bloke from Star Wars... Darth Vader.'

Smith famously boycotted the show after being snubbed for a best actor nomination for his turn in Concussion, where he tackled the difficulty of speaking with an accent, while English beefcake Idris Elba also lost out for Beasts Of No Nation, thought it is believed this was due to the fact it was a Netflix film that never received a wide theatrical release.

He then dialed into the controversy over Beyonce's Black Panther-themed Super Bowl performance, raising his gloved arm in the air and saying, 'Dis is for you.'

Ali G was the character that launched Sacha onto the pathway to stardom.

A supposed youth television interviewer, he became famous for the ridiculous question he would pose to the famous and powerful.

Pouncing on controversy: He parodied Beyonce's Black Panther-themed Super Bowl performance with his clenched fist salute

Rare outing: The character had last been seen in 2014's Ali G: Rezurection

He asked Buzz Aldrin what it was like to 'walk on the sun,' and asked socialist MP Tony Benn if going on strike is the same as 'pulling a sickie.'

The cheeky comic even asked Professor Sue Leece, director of the Centre for Gender Research, if another woman will be 'allowed to slip through' and become Prime Minister of the United Kingdom.

While Sacha has said his character parodies suburban, privileged youth acting in a way they think is typical of black people, critics have said the humour is derived from capitalising on negative black stereotypes.

Closer each day: Sacha had earlier been on the red carpet with his Home And Away star wife Isla Fisher