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Character
Technical Liaison (UNIT)
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Jo Grant

loyal impulsive adaptable selfless relationship-driven methodical intuitive compassionate under duress resilient disciplined compassionate brave observant practical adaptive procedurally conditioned courageous diligent
Jo Grant serves as the Third Doctor’s earthbound companion and UNIT’s technical liaison during his exile on 20th-century Earth. Recruited as a civilian aide, she begins as an impulsive, fiercely loyal field operative who risks herself to protect allies like Captain Yates and Sergeant Benton, confronting alien threats including the Master. Over time, her scientific intuition hardens into methodical precision; she becomes the Doctor’s indispensable anchor, translating alien technologies into practical survival protocols and earning a reputation for procedural calm under pressure. Yet beneath her professional discipline, Jo retains a warmth and compassion that deepens into an intimate relationship with Jones, revealing a personal life beyond UNIT’s bureaucracy. Though she never becomes an academic scientist, her practical skills—preparing antidotes, recalling critical details, following the Doctor’s lead when protocol fails—prove essential. By the end of her service, the weight of saving lives has transformed her from a hesitant institutional figure into a resilient, relationship-driven woman who prioritizes integrity over orders, leaving UNIT’s sphere for a future defined by love and autonomy.
1107 appearances
Temporal and environmental crisis management through applied alien technology
Also known as: Miss Grant, Jo Grant, Josephine, Grant, Jo, Josephine Grant, JO, JO GRANT

Jo Grant's Journey

A timeline through the narrative

1107 moments

Affiliation

Across the Seasons

How this character reads at season scale

Season 8 · anchor

Jo Grant serves as the Third Doctor's companion and UNIT's civilian aide. She joins field missions against alien threats like the Master, providing direct support, relaying communications, and posing logical questions that challenge strategies. Fiercely loyal to the Doctor, Captain Yates, and Sergeant Benton, she defies captors and risks herself to protect allies. Her impulsiveness fuels bold actions in chaos, combining intuition, bravery, quick threat assessment, and growing scientific insight.