Election TrackerHow it worksFor newsrooms
EN

Home › United Kingdom

Zack Polanski

Zack Polanski

Zack Polanski (born 1982) is a British politician and former actor and hypnotherapist.

Born
1982 (43 years), Salford
Party
Green Party of England and Wales
Office
Leader of the Green Party of England and Wales 2025–
Member of the London Assembly 2021–
Education
Aberystwyth University, Stockport Grammar School
Website
zackpolanski.com
Political position

Left · Where sources place the party (Green Party of England and Wales)
Wikipedia places the Green Party of England and Wales on the left
Ideology: green politics, eco-socialism

4%Probability · Holborn and St Pancras By-Election Winner 2027

1h change
0 pts
24h change
▼2 pts
1w change
▼8 pts
Closes

He has led the Green Party of England and Wales since September 2025 and has sat on the London Assembly since 2021. He is the Green Party's candidate in the Holborn and St Pancras by-election, held on 8 October 2026.

Career

Wikipedia records Polanski as an actor, school activity provider and hypnotherapist before politics. He joined the Green Party in 2017, was elected to the London Assembly in May 2021, served as the party's deputy leader from 2022 to 2025 and became its leader in September 2025. According to Wikipedia he announced on 3 September 2026 that he would stand in the Holborn and St Pancras by-election, and he was confirmed as the Green candidate on 11 September 2026.

Offices held
  1. Leader of the Green Party of England and Wales 2025–
  2. Member of the London Assembly 2021–
  3. Deputy Leader of the Green Party of England and Wales 2022–2025

Source: Wikidata

Positions

In his selection campaign for the by-election, Jewish News reports, Polanski stressed housing costs, support for renters and bringing Thames Water into public ownership. He also raised concern about the proposed Jackdaw gas field drilling project. He leads the Green Party of England and Wales, which Wikipedia places on the left.

Summarised automatically from the linked sources. Wikipedia · Jewish News

Photo: Bristol Green Party, CC0, Wikimedia Commons (cropped)

  1. Zack Polanski 4%
100%50%0%

Sep 2Sep 19Oct 7

Holborn and St Pancras By-Election Winner 2027

OutcomeProbability
Sagal Abdi-Wali96%
Zack Polanski4%
Pat Callaghan<1%
Adam Harrison<1%
Richard Olszewski<1%
Sarah Hayward<1%
Tricia Leman<1%
Georgia Gould<1%
Lorna Jane Russell<1%
David Stansell<1%
Hamza Chowdhury<1%
Jim Monahan<1%

All 23 outcomes

Embed this widget

Paste this code into an article or page. The widget updates by itself: the market-implied probability before the vote, live on election night, then the official result.

Preview

More widgets and options for newsrooms →