Laghu Haridāsa should not be confused with Junior Haridāsa, who committed suicide at Prayāga. Generally a devotee is called Haridāsa, and consequently there are many Haridāsas. The chief was Ṭhākura Haridāsa. There was also a Madhyama Haridāsa.
In the Bhakti-ratnākara (Sixth Wave), there is a list of many of the chief devotees who accompanied Śrīla Rūpa Gosvāmī.
gosvāmī gopāla-bhaṭṭa ati dayāmaya bhūgarbha, śrī-lokanātha—guṇera ālaya śrī-mādhava, śrī-paramānanda-bhaṭṭācārya śrī-madhu-paṇḍita—yāṅra caritra āścarya premī kṛṣṇadāsa kṛṣṇadāsa brahmacārī yādava ācārya, nārāyaṇa kṛpāvān śrī-puṇḍarīkākṣa-gosāñi, govinda, īśāna śrī-govinda vāṇī-kṛṣṇadāsa aty-udāra śrī-uddhava—madhye-madhye gauḍe gati yāṅra dvija-haridāsa kṛṣṇadāsa kavirāja śrī-gopāla-dāsa yāṅra alaukika kāya śrī-gopāla, mādhavādi yateka vaiṣṇava “The following Vaiṣṇavas were present with Śrīla Rūpa Gosvāmī: the merciful Gopāla Bhaṭṭa Gosvāmī; Bhūgarbha Gosvāmī; Śrī Lokanātha dāsa Gosvāmī, a reservoir of good qualities; Śrī Mādhava; Śrī Paramānanda Bhaṭṭācārya; Śrī Madhu Paṇḍita, whose characteristics are all wonderful; Premī Kṛṣṇadāsa; Kṛṣṇadāsa Brahmacārī; Yādava Ācārya; the merciful Nārāyaṇa; Śrī Puṇḍarīkākṣa Gosvāmī; Govinda; Īśāna; Śrī Govinda; the magnanimous Vāṇī Kṛṣṇadāsa; Śrī Uddhava, who occasionally visited Bengal; Dvija Haridāsa; Kṛṣṇadāsa Kavirāja; Śrī Gopāla dāsa, whose body is completely spiritual; Śrī Gopāla; Mādhava; and many others.”