Underground Ernie is a Computer-animated children's television series produced by Joella Productions in the UK and shown by the BBC on both CBeebies and BBC Two. It is set in International Station, a fictional worldwide underground network, and focuses on the everyday adventures of Ernie, a friendly Underground supervisor, Millie, his multilingual colleague and Mr Rails the lovable maintenance man. The locomotives under Ernie's watchful eye all have characters of their own. There is Bakerloo, Victoria, Circle, Jubilee and the twins, Hammersmith & City. From time to time they are joined by their friends from across the world including; Paris, Brooklyn, Moscow, Sydney and Osaka.
The show is aimed at children between the ages of 3 and 8 years old. The initial series has 26 episodes each lasting 12 mins. Its first showing on was on Monday 5 June 2006 on CBeebies.
The Producers of the show 'Joella Productions' are currently trying to raise money to get another series of 'Underground Ernie' created. The Production costs for a series is £4 million.
Has targeted appeal — designed for a specific demographic segment.
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Advocacy
Entertainment (0/100) — content choices prioritize storytelling over messaging.
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Representation
notably high other (97) representation, with lower white (19) representation.
Demographic Position
Gender: 43 — leans male Age: 13 — strongly youth-oriented
0 = Male / Youth100 = Female / Mature
Primary audienceYoung Men
targeted
Quadrant Scores
Young Men
95
How strongly this title appeals to males 18–34. Based on genre, cast, action/violence levels, pacing, and marketing signals. Higher = stronger appeal.
Young Women
80
How strongly this title appeals to females 18–34. Based on genre, romance centrality, cast composition, lead demographics, and tone. Higher = stronger appeal.
Older Men
20
How strongly this title appeals to males 35+. Based on theme maturity, pacing, complexity, genre, and production style. Higher = stronger appeal.
Older Women
5
How strongly this title appeals to females 35+. Based on drama elements, character complexity, genre, cast, and emotional themes. Higher = stronger appeal.
Advocacy0
Entertainment
Audience Representation
White
19
Measures deviation from the expected White representation based on this title's production origin. 50 = baseline for its country. Higher = more representation than typical.
Black
40
Measures deviation from the expected Black representation based on this title's production origin. 50 = baseline for its country. Higher = more representation than typical.
Hispanic
46
Measures deviation from the expected Hispanic representation based on this title's production origin. 50 = baseline for its country. Higher = more representation than typical.
Asian
40
Measures deviation from the expected Asian representation based on this title's production origin. 50 = baseline for its country. Higher = more representation than typical.
South Asian
36
Measures deviation from the expected South Asian representation based on this title's production origin. 50 = baseline for its country. Higher = more representation than typical.
Middle Eastern
46
Measures deviation from the expected Middle Eastern representation based on this title's production origin. 50 = baseline for its country. Higher = more representation than typical.
Indigenous
50
Measures deviation from the expected Indigenous representation based on this title's production origin. 50 = baseline for its country. Higher = more representation than typical.
Mixed
44
Measures deviation from the expected Mixed representation based on this title's production origin. 50 = baseline for its country. Higher = more representation than typical.
Other
97
Measures deviation from the expected Other representation based on this title's production origin. 50 = baseline for its country. Higher = more representation than typical.
LGBTQ+
0
LGBTQ+ representation score based on character centrality, cast percentage, lead representation, and source fidelity. 0 = no representation, 100 = central to the story.