EDS AGN simulated in this work plotted on the optical-NIR-MIR colour space used in Fotopoulou & Paltani (2018). We used the EuclidY_E and J_E bands, the Rubin/LSST g band (gLSST), and the WISE 3.4 μm (W1) band. Only AGN with S/N > 5 in at least one Euclid band are plotted. Each of our AGN SED classes are plotted individually: Unobscured AGN (‘Unobsc.’; blue), Passive (‘PASS’; orange), Star-forming (‘SFG’; green), Starburst (‘SB’; red), High-luminosity obscured AGN (‘QSO2’; purple), Seyfert 2 (‘SEY2’; brown), and Starburst-AGN composite (‘SB-AGN’; pink).