The 71-year-old actor will essay the role of Joe Ridgeway, the eccentric English teacher at Matheson Academy, according to The Hollywood Reporter.
"Locke and Key" is a horror-cum-fantasy series that revolves around the Locke children who, after their father's murder, migrate to their ancestral home in Maine only to find that the house has magical keys lends them some powers.
The plot gets interesting as a demon is also seeking the keys and will fight them tooth-and-nail to attain them.
Glover's Joe takes in the three siblings but he is also someone who knows about some tragic secrets that their father kept from them.
The show chiefly features Frances O'Connor, Megan Charpentier, Jackson Robert, Nate Corddry, among others.